New

• If you take a medicine long term, such as a cholesterol or blood pressure drug, check the leaflet for grapefruit; if it is mentioned, don't eat grapefruit or pomelo and don't drink grapefruit juice

7 revised

• Get the hepatitis B blood panel (called the “two-and-a-half pairs” test in China) and use your vaccination record to decide whether you need a catch-up vaccine
• Before going down into a septic tank, manhole, sewage pit, vegetable cellar, fermentation tank or similar confined space, ventilate it first, get a passing gas test, and put protection and a watcher in place; if you can't, don't go in. If someone collapses inside, don't follow them down; call 119 (China's fire emergency number) and 120 (China's ambulance number)
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If a mouth suddenly droops, one arm goes weak or speech is slurred, call 120 (China's ambulance number) at once; don't wait and don't drive there yourself
• After a scald, run cool water over it right away for 20 minutes, and don't put on toothpaste or soy sauce
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If a stranger demands money from you in the wild, give it to him, don't fight, note his features, and report to the police after you get away

17 revised

• Before going down into a septic tank, manhole, sewage pit, vegetable cellar, fermentation tank or similar confined space, ventilate it first, get a passing gas test, and put protection and a watcher in place; if you can't, don't go in. If someone collapses inside, don't follow them down; call 119 (China's fire emergency number) and 120 (China's ambulance number)
• Build an emergency fund of 3 to 6 months of living expenses first, and keep it where you can withdraw it at any time
• Before you sign at a bank counter, check whether what you are holding is a deposit or insurance
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Refuse when an acquaintance asks you to "scan your face and be a witness" to take out a loan, or asks you to read out a verification code: this is called an AB loan, and the borrower is you, not a guarantor
• When a couple with minor children divorces, write into the divorce agreement who the child lives with, how much the monthly child support is, and how and when visits happen: the more specific it is, the less you will go back to court after the divorce
• Before paying someone to run your online shop, taking a shop-opening course, or doing "no-inventory" selling, ask whether more money will be demanded later and where the sales will come from
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If you are lost or your vehicle breaks down in the Gobi, a desert or empty country, stay where you are or by the vehicle: report your position first, then get shade and keep warm, conserve water, and don't wander
• Shivering, slurred speech and an unsteady walk mean hypothermia: change out of wet clothes, wrap the person up, warm the trunk first, and give hot sweet drinks but no alcohol
• Before signing a lease, check the ownership certificate and any mortgage, and pay everything by transfer with the purpose noted
• If you are bullied, insulted or obstructed at work over a long time, don't just endure it: write it down and keep evidence first, then take the complaint, police or arbitration route that fits
• For diapers, don't go by brand; look at three things: the fit, how often you change, and whether the product has been named in a spot-check report
• If you have risk factors for preeclampsia, start one low-dose aspirin a day after 12 weeks of pregnancy, as your doctor directs

Guides revised

• Home emergency supplies: what to buy, where to keep it, how often to check：Lists the 16 basic and 31 extended items in China's national household emergency supplies list; the escape smoke hood gets its oxygen limit, protection times and 3-year shelf life.
• When a stranger is in trouble on the road: walk away or stop：Now about "normal" breathing: if there's no response and no normal breathing, start chest compressions.
• After a new chronic diagnosis: what to do in the first week, the first three months, and after：Long-term uric acid–lowering drugs are now for gout with tophi, bone damage or 2 or more flares a year; with fewer flares, decide with your doctor.

14 revised

• If you are a man who has sex with men and has high-risk sex, ask a designated HIV hospital about pre-exposure prophylaxis; taken on schedule, it cuts infections by about 70%
• Brush your teeth properly, clean between your teeth once a day, and replace missing teeth promptly
• You don't have to give up eggs; up to one a day is fine
• The longer you work night shifts, the higher your cardiovascular risk; if you can move to another position, do it sooner
• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• When angry, don't vent by hitting a punching bag or running a lap; slow your body down first
• Don't start uric-acid-lowering drugs just because a checkup found high uric acid when you've never had gout pain
• Call the police and don't use your hands when a conflict starts; the one who strikes first makes it easy for the other side's hitting back to count as justified self-defense
• To tell whether someone is interested, look at behavior and not "signals": who initiates, who arranges, who follows up
• If there is a sudden tearing pain that moves from the chest to the back and down to the lower back, call 120 (China's ambulance number) and say clearly that it "feels like tearing"
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• Watch for the signs of newborn jaundice: if the baby is yellow within 24 hours of birth, or can't be woken or won't feed, go to the hospital the same day; if it is getting more yellow or the stool is pale, get it checked as soon as possible
• If you are vegetarian while pregnant or breastfeeding, take vitamin B12 every day; the child's solid foods need animal foods, and if you insist on fully vegan, see a doctor first
• After a parent dies, tell the child the truth and let them attend the farewell

Guides revised

• How the body tells time, and why night shifts do harm：The sunglasses-on-the-way-home advice now cites the experiment behind it; "all three or nothing" became "researchers recommend doing all three".

New

• If your heart races or beats irregularly, get an electrocardiogram (ECG); if atrial fibrillation is found, ask a doctor to assess you for an anticoagulant to prevent stroke, and don't use aspirin instead
• Get one hepatitis C antibody test as an adult; if positive, get a nucleic acid test, and if confirmed, take an oral drug for 8 to 12 weeks, which cures the great majority
• Before going down into a septic tank, manhole, sewage pit, vegetable cellar, fermentation tank or similar confined space, ventilate it first, get a passing gas test, and put protection and a watcher in place; if you can't, don't go in. If someone collapses inside, don't follow them down; call 119 (China's fire emergency number) and 120 (China's ambulance number)
• At 45 or older, if you live in an area with a high rate of stomach or esophageal cancer, have a family history, or test positive for Helicobacter pylori, get a gastroscopy screening
• Finish soaked wood ear and white fungus the same meal and don't keep them overnight, eat wet rice noodles such as flat rice noodles and rice noodle rolls the day you buy them, and don't ferment corn or rice flour at home
• If prediabetes is found (blood sugar high but not yet diabetes), push diabetes back by eating less, losing weight and moving more, and recheck your blood sugar every 6 months
• If peanuts, corn, nuts or rice and flour at home have gone moldy, throw out the whole bag and don't pick out the moldy parts and eat the rest; spit out any nut that tastes bitter right away
• Don't eat raw freshwater fish or shrimp such as yusheng, sashimi, raw-fish congee or drunken shrimp; if you have often eaten them, get checked once for liver flukes, and if found, take praziquantel as your doctor says
• If you have long-term insomnia (3 or more nights a week for 3 months or longer), start with cognitive behavioral therapy for insomnia, and don't go straight to taking sleeping pills long term
• If you snore loudly, someone has seen you stop breathing in your sleep, or you are so sleepy during the day that you feel like dozing off even while driving, go to a hospital for a sleep study to check for sleep apnea, and if it is moderate to severe, wear a breathing machine at night
• Don't have arthroscopic cleanup or the meniscus cut just because middle-aged or older knees slowly start to hurt (osteoarthritis, degenerative meniscal tear); lose weight and strengthen the thigh muscles first
• Don't count on melatonin to cure long-term insomnia; it helps people fall asleep only about 7 minutes sooner on average; start with cognitive behavioral therapy for insomnia
• Don't demand an IV drip for a cold or an ordinary fever, and don't get a drip at the change of seasons to “flush the blood vessels” or “clear the blood vessels”
• When a couple with minor children divorces, write into the divorce agreement who the child lives with, how much the monthly child support is, and how and when visits happen: the more specific it is, the less you will go back to court after the divorce
• If a child swallows a button battery, or swallows two or more strong magnetic beads, go at once to the emergency room of a hospital that has endoscopy; don't wait for it to pass on its own and don't make the child vomit
• If someone is drunk, lay them on their side and have someone stay with them; don't let them sleep alone; call 120 if they can't be woken, their breathing is slow or irregular, they have seizures, or their body feels cold
• If a finger or toe is cut off, press the wound to stop the bleeding, wrap the severed part in damp gauze and put it in a sealed bag, put the bag in ice water, and go to a hospital with a hand surgery department
• If a permanent tooth (one that grew in after the baby teeth) is knocked out whole, hold it by the crown and rinse it briefly, put it back if you can, and if you can't, soak it in milk and see a dentist right away; don't put a baby tooth back
• Before you change your phone number or stop using your old one, move your bank, payment and social accounts to the new number first, and don't just let the old one run up unpaid bills until it is cut off
• If you have had gout, don't eat large amounts of meat and seafood at one sitting at a barbecue or group meal, and drink less alcohol
• If tests find hepatitis B surface antigen positive, get a liver ultrasound plus an alpha-fetoprotein test every 6 months, let your doctor's assessment decide whether you take antiviral drugs, and once you start, don't stop on your own
• If you have COPD (chronic obstructive pulmonary disease), have your doctor or pharmacist watch you use your inhaler once at each follow-up visit; if you have been hospitalized for an acute flare-up, go to pulmonary rehabilitation after you leave the hospital
• If you have diabetes, get a urine albumin-to-creatinine ratio and a blood creatinine test every year, and do the same if you have high blood pressure, to catch chronic kidney disease early
• If you have finished surgery and chemotherapy for colon cancer, join a guided exercise program and keep at it for a full three years
• When you get things for a baby, don't buy a walker with wheels; if you want the baby to sit and play, switch to a stationary play station or a playpen without wheels
• Give the child 400 international units (IU) of vitamin D every day from birth, and don't skip it especially if breastfed; a full-term baby generally doesn't need extra calcium within the first 6 months
• When bathing a baby, run cold water first and then add hot, and test it with the inside of your wrist or your elbow before putting the baby in; if your water heater lets you set the output temperature, set it below 50 ℃
• Don't soak in a hot spring or use a sauna after drinking alcohol, and don't take a hot bath when you get home either
• Wear a helmet when skiing, snowboarding, roller skating or mountain biking
• If flu season comes while you're pregnant, get one inactivated flu vaccine shot, which can be given at any stage of pregnancy; don't use the nasal spray
• From 28 weeks of pregnancy on, go to sleep on your side, left or right, and don't go to sleep lying on your back
• Once you resume sex after giving birth, use contraception; breastfeeding is not contraception; if you want another baby, wait at least 18 months before getting pregnant
• After a car crash, an assault or a disaster yourself, don't count on a one-time psychological debriefing right after the event; if a month later nightmares, flashbacks and being on edge are still severe, see a psychiatrist for trauma-focused psychotherapy
• Teach a child which parts of the body are private, and to tell you at home if anyone touches them or asks for secrecy; if the child tells you, believe them first and don't scold, then take them to report to the police and to a doctor
• If a child hits their head during sports and afterward has a headache, dizziness or feels dazed, don't let them play again that day; if there is repeated vomiting, growing drowsiness or a worsening headache, go to the emergency department right away
• If you have taken a cold medicine or allergy medicine that contains chlorpheniramine or diphenhydramine, don't drive, work at heights or operate machines while taking it

367 revised

• Wear a seatbelt in every seat, front and back
• Wear a helmet on a motorcycle or e-bike, and fasten the strap
• Install smoke alarms; if you burn coal or use gas for heating indoors in winter, add a carbon monoxide alarm
• Replace gas hoses and stoves when they expire, don't alter the pipes yourself, and feel free to turn away gas-company salespeople who come to your door
• Don't pick, buy or eat wild mushrooms; no “folk method” of telling safe ones apart works
• Don't push an e-bike into a stairwell or elevator, and don't charge it at home
• Check your blood pressure, and if it's high, take medicine to get it down to target
• After 35, if you are overweight, get a fasting blood glucose test once, and repeat it every 3 years even if it's normal
• Don't speed, don't drive after drinking, don't use your phone, and pull over to rest when you're sleepy
• Put children under 4 in a child safety seat in the car, not on your lap
• If there are small children at home, put window stops on windows and balcony doors; a window screen is not protection
• Keep children in sight near water, and wear a life jacket when boating or swimming in open water
• After 60, train balance and leg strength, and make the bathroom and stairs at home safer
• Get the hepatitis B blood panel (called the “two-and-a-half pairs” test in China) and use your vaccination record to decide whether you need a catch-up vaccine
• If you are stabbed by a nail or a splinter, or a wound gets dirt in it, have it treated that day and ask whether you need a tetanus shot
• Get the HPV vaccine for women, the earlier the better
• Women should start breast cancer screening at 40, with a mammogram every 2 years
• Women over 30 should get cervical cancer screening, with an HPV test first
• From 45 to 50, start colorectal cancer screening with a fecal immunochemical test for hidden blood in stool, or a colonoscopy
• People with cardiovascular disease and older adults should get a flu shot every year
• Get the shingles vaccine after 50
• Get the pneumococcal vaccine after 65
• Test for Helicobacter pylori, and eradicate it if positive
• Heavy smokers should get a low-dose chest CT every year
• If you are depressed or thinking about suicide, call 12356 (China's national mental-health hotline), and don't keep a stock of sleeping pills or pesticide at home
• If you see visible blood in your urine, get checked once, even if it doesn't hurt and even if it's gone by the next day
• If you have erection problems, get your cardiovascular health checked first; don't treat it as only a “private matter”
• Lose weight, quit smoking, and keep blood pressure and blood sugar under control; erectile function can improve along with them
• Use a condom for the whole of every sexual act, and don't share needles with anyone
• After any high-risk act, get tested for HIV once; the CDC tests for free and keeps the result confidential
• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Don't count on being “saved” as a safety net: after swallowing pesticide or breathing in gas, the emergency room can save a life, but not the lungs or the brain
• Don't gamble on “a few days lying down and I'll be fine” after a fall from a height: most people who reach a trauma ICU survive, but the cost is counted in years
• Don't sell a kidney for money thinking “one less kidney is nothing”: the remaining one does the work of two, and 86% of people who sold a kidney said their health got worse afterward
• Don't pick up, take apart or sell metal parts of unknown origin, and stay away from anything with a trefoil warning sign
• If you keep gambling with borrowed money and your mood stays low, call 12356 (China's national mental-health hotline) first, then hand your bank cards and payment passwords to a family member to manage
• If you are a man who has sex with men and has high-risk sex, ask a designated HIV hospital about pre-exposure prophylaxis; taken on schedule, it cuts infections by about 70%
• Women over 65 should get one dual-energy X-ray bone density scan, and after menopause, women with risk factors for osteoporosis shouldn't wait until 65
• If osteoporosis is found, or you have broken a bone from a light fall, ask a doctor to prescribe an anti-osteoporosis drug and keep using it; calcium supplements are not a substitute
• Before stepping onto wild ice, drill a hole and measure the thickness; don't go on if it is under 15 cm, and stay off river ice and the edges of ice-fishing holes
• Before using an angle grinder, fit the guard, wear safety glasses plus a face shield, hold it firmly with both hands, and never mount a wood saw blade to cut wood
• Ask someone close to you who seems off, directly, “Have you thought about suicide?” Asking does not make them think about it more
• Quit smoking, and the earlier the better
• Don't smoke at home or in the car, and don't let guests smoke at home
• Don't try to quit by willpower alone; get medicine first, which more than doubles your chance of success
• Go to a quit-smoking clinic, or call 12320 (China's public health hotline) to ask whether there is a quit-smoking service near you
• Consider e-cigarettes only if you really can't quit otherwise, and don't touch them if you don't already smoke
• Don't drink sugary drinks, and switching to sugar-free doesn't solve it
• Don't chew betel nut
• Switch the table salt at home to low-sodium salt (potassium salt)
• Brush your teeth properly, clean between your teeth once a day, and replace missing teeth promptly
• Walk 7000–8000 steps a day, or build up 150–300 minutes of brisk walking a week
• Get your blood lipids tested regularly as an adult, every 2 to 5 years before 40 and every year from 40; if you have high blood pressure or high cholesterol, take your medicine regularly as prescribed and don't stop on your own
• Sleep about 7 hours a night on a regular schedule
• Do 30–60 minutes of strength training a week
• Drink less alcohol, or none
• If you drink every day and your hands shake and your heart races when you stop, don't try to quit cold turkey on your own
• Swap some of your red meat for fish and poultry
• Drink tea more than 3 times a week
• Drink 3 to 4 cups of coffee a day, keep total caffeine under 400 mg, and don't add sugar or milk foam
• Eat 5 servings (about 400 g) of fruit and vegetables a day
• Eat less ultra-processed food (potato chips, instant noodles, pastries, ready meals)
• Let hot things cool before you drink them; don't drink scalding tea, soup or coffee
• Get out in the sun during the day; don't go all day without light
• Keep your BMI between 20 and 25, and lose weight if you are overweight
• Eat chili peppers more than 4 times a week
• You don't have to give up eggs; up to one a day is fine
• Take a bath instead of only a shower, if you can
• Keep naps to half an hour and no more than an hour; if you can only get through the day with a 1- or 2-hour sleep, find out why
• Catch up on sleep the night after a late night, rather than saving it for the weekend
• The longer you work night shifts, the higher your cardiovascular risk; if you can move to another position, do it sooner
• Cook with vegetable oil instead of lard and butter, don't swap oils for your health, and don't count on flaxseed oil to protect your heart
• If hot flashes and night sweats around menopause are affecting your life, see a gynecologist about hormone therapy; don't just put up with it, don't buy the drugs yourself, and don't use it to prevent heart disease
• If you already wanted a dog, count the daily walks as part of your walking, and don't get a dog just to live longer
• Get up at the same time every day, weekends included
• Sleep 7 to 8 hours a night, and don't treat 6 hours as enough
• Don't have caffeine after 2 p.m.
• Do one thing at a time; don't reply to messages during a meeting
• Don't look at a glowing screen in the hour before bed; read a paper book or an e-ink screen instead
• Go to sleep on time; don't stay up for games, short videos or pornography
• Don't make big decisions or send important messages late at night
• If you're drowsy in the afternoon, nap for 10 minutes, not half an hour
• When you notice you keep replaying the same upsetting thing, switch to something you do with your hands
• Cut back on relationships that drain you, and learn to turn down requests you don't want to take on
• When angry, walk away first, and treat the other person as weather, not as an enemy
• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• Treat police officers, doctors and bank tellers as people working by the rules of their jobs, not as roles: what moves things forward is paperwork and deadlines, not emotion
• When you feel that “everyone saw me embarrass myself,” cut that estimate in half
• Treat the thought “other people demand perfection from me” as a symptom, not as fact
• When angry, don't vent by hitting a punching bag or running a lap; slow your body down first
• If something is weighing on you, you can write down your thoughts and feelings over several days, but don't expect it to cure anything
• For period pain, take a painkiller such as ibuprofen rather than toughing it out; if the pain keeps you from work or school, or three months of medicine doesn't control it, see a gynecologist
• Write down your exit condition before you start
• Set a date for yourself on anything that has no outside deadline
• Treat procrastination as avoiding something unpleasant, not as not trying hard enough
• Put your own money on the line to make yourself follow through, but first ask whether you would be willing to
• If procrastination is already affecting your life, use self-help materials backed by randomized trials; you don't have to see a therapist
• Set a hard limit on short videos and aimless scrolling
• Skip TV and scrolling news; check the information you need at set times, all at once
• Spend a one-time effort learning keyboard shortcuts and automation in the software you use often
• Put commute time first when choosing where to live, and shorten your one-way commute
• Turn off all auto-renewals and renew by hand when a subscription expires
• Don't buy lottery tickets
• Walk away when you see "high returns," "principal guaranteed" or "sure profit"
• Don't make only the minimum credit card payment, and don't take installments or consumer loans for purchases; if you must borrow, convert the interest into an annualized rate before comparing
• Don't tip streamers, don't top up games, and don't place orders on impulse
• Teach your child one sentence: anyone who tells you to use a parent's phone or read out a verification code is a scammer
• Turn down extended warranties on electronics
• Drink boiled tap water; don't subscribe year-round to bottled water for a dispenser or buy bottled water
• Don't trade stocks often, and trade even less when the market soars or crashes
• Don't borrow to invest, don't use leverage, and don't buy what you don't understand
• Use broad index funds instead of actively managed funds as the long-term core holding (the part of your money you hold for the long run)
• Among similar funds, prefer the one with lower fees
• Don't put all your money on one stock, one platform or one house
• Don't stock up because of "crossed-out prices" and big sales
• Build an emergency fund of 3 to 6 months of living expenses first, and keep it where you can withdraw it at any time
• Before prepaying your mortgage, work through one comparison; don't go by feel
• Count bead bracelets, jade, luxury watches and designer toys by "money spent," not "money saved"
• Sell stocks that have lost money by a rule you set in advance, and don't count on averaging down to turn things around
• Don't take vitamin D to live longer if you aren't deficient in it
• Don't take antioxidant supplements (beta-carotene, vitamin E, vitamin A) to prevent cancer
• Don't count on glucosamine/chondroitin to treat knee osteoarthritis
• Don't rely on vitamin C to prevent colds
• Don't get a whole-body PET-CT or a “tumor marker package” when you have no symptoms
• Don't count on a fitness band or watch that tracks your activity to help you lose weight
• Don't pay a premium for organic food to be “healthier”
• Don't spend big on supplements, herbal tonic pastes or tonic products to “balance the body”
• Don't take probiotics long term when you have no gut problem
• Don't force yourself into cold showers to “boost immunity”
• Don't force yourself to drink to reach “8 glasses a day”
• Don't pay for fortune-telling, tarot or horoscopes to make decisions
• Don't buy blue-light glasses to “protect your eyesight,” and don't believe that “a few months facing a screen ruins your eyes,” but treat swollen, painful, red eyes as an emergency
• Don't treat giving blood as a health measure: there is no randomized trial behind “detox, lower blood fats, prevent heart attack,” and giving too often really does leave you short of iron
• Don't rely on a general checkup package to prevent disease; get the few screenings that have evidence for your age and sex
• Don't start uric-acid-lowering drugs just because a checkup found high uric acid when you've never had gout pain
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Don't cut out calcium to prevent kidney stones
• Don't buy crystals, bead bracelets or pixiu charms for “changing your luck,” “attracting wealth” or “nurturing” you
• Don't count on buying things to improve your mood or sense of identity
• Don't spend more on a home, car or social circle to “move up a notch among the people around you”
• Don't believe that “willpower is like a muscle that runs out after a while”
• Don't count on eating breakfast or 16:8 intermittent fasting to control your weight; choose meal times you can keep up long term
• Don't believe that “masturbation harms the body” or that you must “quit lust” to get better; what to watch is whether it is costing you sleep, work and relationships
• Don't pay for “sexual orientation conversion” or “homosexuality treatment,” and don't send a family member to it
• Don't count on learning a “correct lifting posture” or taking a lifting course to prevent back pain; what to cut is the weight and number of lifts, and exercise regularly
• Don't count on heavy calcium supplements or bone broth to make bones heal faster after a fracture
• Don't count on an AI chatbot to judge your illness or legal problem on its own; before seeing a doctor, going to court or spending big money, find the original source for what it cites and check it
• Don't skip saving just because “people can die at any time, so it's happier to spend the money early”; about 90% of 30-year-olds live to 60
• Don't just send out resumes; use a systematic job search method: learn the techniques, set a target and get people to help
• Remember the hard rules against fraud: don't trust incoming calls, don't give out information, don't click links, double-check before any transfer; the seven most common scams all have this shape
• Don't treat a face on video or a voice on the phone as verification; hang up before any transfer and call back on an old number from your own contacts
• Don't touch the steering wheel after drinking, including electric bikes and "just moving the car", and don't lend your car to anyone who has been drinking or has no license
• Call the police and don't use your hands when a conflict starts; the one who strikes first makes it easy for the other side's hitting back to count as justified self-defense
• Treat thoughts like "take someone down with me" or "die together" as an emergency: leave the scene, hand your car keys and knife to someone else, and call 12356
• Don't curse, spread rumors or forward unchecked claims online; if you are cyberbullied, keep evidence first, then call the police
• Read the whole paper before you sign, don't sign for others, and don't sign a blank page
• Write a clear IOU when you lend money, and before you guarantee someone else's debt, think about whether you are willing to pay it for him
• If you are cheated in online shopping or a secondhand deal, complain to the platform first, then call the police, then work out whether a lawsuit is worth it
• Ask the price before home repair, vehicle inspection or renovation work begins, and watch the work from beside the worker
• Don't carry things for strangers across borders, and don't receive packages of unknown origin
• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• Refuse when an acquaintance asks you to "scan your face and be a witness" to take out a loan, or asks you to read out a verification code: this is called an AB loan, and the borrower is you, not a guarantor
• Fit good locks on doors and windows, put a motion-sensor light outside the door, and really lock up when you go out: these are what prevent burglary, and an alarm alone shows no benefit
• Don't forward disaster, epidemic or police-incident messages in group chats when you don't know if they are true, and don't edit photos or use AI to fake a scene
• Turn down any "part-time job" that asks you to receive money, withdraw cash or transfer funds with your own card, no matter how big the fee
• Don't withdraw money with a bank card you find, and contact the owner or hand to the police any phone or wallet you find; don't pocket it
• Don't throw anything out of a balcony or window, and that includes cigarette butts, garbage bags and bottles
• Don't secretly film other people, and don't install cameras in rental rooms, guesthouse rooms or hotel rooms
• Don't eat wild game, and don't buy, sell or keep protected animals as pets; don't dig up or trade wild orchids, cliff arborvitae or yew either
• Don't lend your ID card, don't use someone else's, and don't use another person's documents to register, open a card or buy a ticket
• Work out the bill before you hit someone: detention, paying money, a prison sentence
• Don't stage accidents or exaggerate losses to cheat on a claim: this is the crime of insurance fraud, and the people who testify for you, repair your car or assess your loss are convicted with you
• Don't sell your own organs and don't help anyone find a donor: a kidney that earns the seller just over 20,000 CNY is resold for 200,000 CNY, and the money is confiscated and a fine of 10 to 20 times the transaction amount is imposed
• Localizing comics, reposting films and TV, sharing cloud-drive files and pirated e-books is infringement even without charging; running ads or collecting membership fees can lead to a prison sentence
• Meet more people instead of fixating on one: whether two people click can't be predicted before they meet
• Stop once the other person has clearly refused; continuing to pester is a public security violation, not "sincerity"
• To tell whether someone is interested, look at behavior and not "signals": who initiates, who arranges, who follows up
• Whether a relationship is good depends mainly on how you feel in it, not on the other person's credentials
• To get closer, take turns answering a set of questions that go from light to deep; don't learn lines
• A long-distance relationship is no worse than living in the same city; the real hurdle is the first three months after moving in together
• Count the health benefits of marriage, but discount them because the data are observational
• Count the time cost as unpaid work, and agree on the division of labor before you register
• Get a premarital checkup, and a serious illness must be truthfully disclosed to the other person before registration
• Treat the quality of a relationship as a health account: argue about the issue, not the person, and don't insult or sneer
• Don't marry while hiding your sexual orientation, and don't treat a marriage in name only as a convenient shortcut: legally it is a real marriage, and the only way out is divorce
• If your relationship is stuck in repeated fights and cold silences, go to couples therapy together: waiting around will basically not fix it by itself
• Before you act, ask whether the vendor, platform or company would report it; if you are pursued, get a criminal defense lawyer right away
• Don't make or sell game cheats or assist tools, including AI assists that "only read the screen and never touch memory," and don't sell modified versions that add features to software like WeChat
• Hand over all account access when you leave, and don't delete databases, leave backdoors or change passwords to lock the system, even if the company owes you money
• Don't take source code, customer lists or technical documents when you leave, don't upload them to a personal cloud drive, and don't reuse them at your next employer
• Don't run your own programs on other people's computers, servers or cameras, and don't use company machines to mine cryptocurrency
• Don't test other people's systems without written authorization; "good intentions" and "reporting afterward" are not defenses
• Report vulnerabilities as the rules require, and before they are fixed don't publish the details, release exploit tools or hand them to anyone abroad
• Code written during work hours or with company resources belongs to the company; do your own open-source projects on your own time and equipment, with no company code mixed in
• When building an app, collect only the personal information the business needs, get a guardian's consent for children under 14, and write the privacy policy clearly
• Start a business only with money you can afford to lose; don't touch the family's savings or borrow to open
• Don't sign a personal guarantee on a company loan, and your spouse shouldn't sign along with you
• Don't be a nominal shareholder, and don't hold equity on someone else's behalf
• Sell first, build second: use presales and small orders to confirm people will buy before you put money into production
• Once the sample is made, run it through a mass-production checklist before you start production
• Images on products, packaging, tags and promotional pictures must be made by you or bought under a license; changing the color or adding an icon doesn't make it "altered"
• At your post, follow procedure, and before doing a favor outside procedure, think through who bears responsibility
• Before paying someone to run your online shop, taking a shop-opening course, or doing "no-inventory" selling, ask whether more money will be demanded later and where the sales will come from
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If a mouth suddenly droops, one arm goes weak or speech is slurred, call 120 (China's ambulance number) at once; don't wait and don't drive there yourself
• If there is sudden spinning dizziness with unsteadiness, double vision, blackout in one eye, or the fingertip can't reach your own nose, treat it as a stroke and call 120 (China's ambulance number)
• If one eye suddenly goes dark like a curtain being pulled down, treat it as a stroke and go to the emergency room the same day, even if it clears up in a few minutes
• If one eye is swollen, painful and red, lights have a rainbow ring around them, and there is headache with nausea or vomiting, go to the eye emergency room the same day
• If there is pressing pain, tightness or squeezing in the chest lasting more than 15 minutes without easing, call 120 (China's ambulance number); don't tough it out and don't drive yourself
• If there is a sudden tearing pain that moves from the chest to the back and down to the lower back, call 120 (China's ambulance number) and say clearly that it "feels like tearing"
• If there is a sudden "worst headache of your life" that reaches its peak within an hour, go to the emergency room for a head CT right away
• If an older person, two or three weeks to a few months after bumping their head, becomes unsteady on their feet, slow, sleepy or weak on one side, get a head CT
• If one leg suddenly swells, feels tight and hurts when pressed, get medical care soon; if there is also sudden shortness of breath or chest pain, call 120 (China's ambulance number) at once
• For heavy bleeding, first press hard on the wound with your hand; if you can't stop it on a limb, put on a tourniquet; and call 120 (China's ambulance number) at the same time
• If a dog or cat bites you or breaks the skin, rinse with soap and running water, alternating, for 15 minutes, and get the vaccine the same day
• After a scald, run cool water over it right away for 20 minutes, and don't put on toothpaste or soy sauce
• If a rash suddenly spreads over the body with trouble breathing or dizziness, treat it as anaphylaxis, and call 120 (China's ambulance number) at once and say so clearly
• If someone has a seizure and falls, clear the area around them, lay them on their side, time it by the clock, and put nothing in their mouth
• If a person with diabetes suddenly shakes, breaks into a cold sweat or slurs speech, first give 15 grams of sugar and recheck after 15 minutes
• If a carbon monoxide alarm sounds, or a whole room of people get headaches and nausea at once, get outside first, then make the call
• If someone swallows cleaner, pesticide or medicine, don't make them vomit; take the bottle and go for care at once. If it splashes into the eyes or on the skin, rinse with plenty of water for at least 15 minutes
• If acid, alkali or another chemical splashes on you, take off the contaminated clothing at once, rinse with plenty of running water, hold the eyelids open when rinsing the eyes, and don't leave until you have rinsed long enough
• In high heat, if there is dizziness, nausea, no sweating or confusion, move to a cool place at once, take off clothing and pour water to cool down, don't give water to someone who isn't fully conscious, and call 120 (China's ambulance number)
• A person with heat illness who is awake should drink cool light salt water or a sports drink in small amounts, often; don't gulp, and avoid alcohol and high-sugar drinks
• In a fire, crawl low, feel the door before opening it, don't open it if it is hot, take the stairs and not the elevator, and once you are out don't go back
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• If you are lost or your vehicle breaks down in the Gobi, a desert or empty country, stay where you are or by the vehicle: report your position first, then get shade and keep warm, conserve water, and don't wander
• Shivering, slurred speech and an unsteady walk mean hypothermia: change out of wet clothes, wrap the person up, warm the trunk first, and give hot sweet drinks but no alcohol
• If bitten by a snake, sit down and keep still, take off rings and watches, get to a hospital quickly for antivenom, and don't cut, suck or tie tightly
• In an earthquake, first see what kind of building you are in: in a building built to seismic standards take cover in place, and in an old building that could collapse, go out if the door is a few steps away
• If you meet a bear, wild boar or a pack of wild dogs, don't run; turn sideways and back away slowly
• If caught by a thunderstorm outdoors, get into a hard-topped vehicle or building, and stay away from ridges, lone trees, open water and metal
• Going up to a high plateau, climb by sleeping altitude (how high you sleep that night) and go down if symptoms get worse; don't tough it out
• If a tick is attached, pull it out steadily with pointed tweezers close to the skin, and don't put on oil or burn it
• Boil all water from the wild before drinking; a rolling boil for one minute is enough, and you don't need to boil longer at high altitude
• If you come upon a group fighting, back away and leave; don't step in to break it up, don't stand and watch, and don't pick up anything from the ground; if you report it, move to a safe distance and dial 110 (China's police number)
• If you may have been exposed to HIV, get the preventive medicine within 72 hours, the sooner the better
• If a knife, steel rod or glass is stuck in the body, press around the object to stop bleeding and do not pull it out
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself
• After a sexual assault, first get to a safe place and call 110 (China's police number); before the medical exam don't shower, wash clothes or tidy the room, and go to a hospital within 72 hours
• If a baby under 1 year old is choking and can't cry, lay the baby face down and give 5 back blows, turn the baby over and give 5 chest pushes, alternating, and don't press the belly
• If a baby under 1 year old is unresponsive and not breathing normally, put the phone on speaker and call 120 (China's ambulance number), and give infant CPR: 30 pushes and 2 breaths
• Turn on two-step verification for your email, payment and social accounts, and prefer a confirmation pop-up on your phone over a text-message code
• Give your email its own password, and don't reuse it on any website
• Set a lock-screen passcode on your phone and a PIN on the SIM card
• Don't hand your code, keys and private files to an unknown "AI relay service", especially when you let the AI run commands automatically
• Take your medicine as prescribed to the end of the course, and don't stop just because you feel better
• Go for follow-up checks at the interval your doctor sets, and record every result in the same notebook
• Don't stop proper treatment to try folk remedies or health supplements
• Get an eye-ground exam once when diabetes is diagnosed, then at the interval your doctor sets, and have your feet checked every year
• If you have had a kidney stone, drink 2.5–3 liters of water a day and keep salt to no more than 6 grams
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• While an older person is still clear-headed, name their future guardian in writing
• Keep an older person's money in a separate account, and set a rule that large payments need two people to confirm
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• Stay away from any "invest for your retirement" scheme that asks an older person to pay first: cards, beds, retirement apartments, travel-retirement and senior products are all the same illegal fund-raising
• If someone at home is bedridden for a long time, treat pressure sores as the number one enemy: use a powered air mattress, turn them on a schedule, and check the bony spots every day
• If an older person walks a dog, hold the leash in the palm of the hand and don't wrap it around the hand, keep the leash short, and first train the dog not to lunge forward on the leash
• Count the time cost of raising a child by whose time gets taken up, not by how tiring it is
• Keep a separate account for having a child for your elders, for the marriage, and for old-age support
• Much of the damage from dust, noise and toxic chemicals is irreversible (for example pneumoconiosis and noise-induced deafness): the employer must supply protective gear, and you can refuse work with no protective measures
• Put a baby to sleep on the back, on a firm flat surface, in the same room but not the same bed, with nothing soft in the bed
• Give the first hepatitis B vaccine shot within 24 hours of birth
• Get all the vaccines in the national immunization program on schedule, which are free all the way, and if you miss one, only catch up on the doses not yet given
• Feed only breast milk for the first 6 months, not even water, start solid foods at 6 months and keep breastfeeding
• Mix formula with water above 70 ℃, let it cool before feeding, and throw away what is left
• Do not give honey to a child under 1 year old
• Be sure the vitamin K shot is given at birth
• If a baby under 3 months has a temperature of 38 ℃, go straight to the hospital and don't watch at home
• For diapers, don't go by brand; look at three things: the fit, how often you change, and whether the product has been named in a spot-check report
• For big items, think in the order borrow, buy used, buy new, and don't buy everything at once
• If a child has severe eczema or an egg allergy, don't avoid peanuts: add them early as the doctor directs, but never give whole peanuts
• Watch for the signs of newborn jaundice: if the baby is yellow within 24 hours of birth, or can't be woken or won't feed, go to the hospital the same day; if it is getting more yellow or the stool is pale, get it checked as soon as possible
• If you are vegetarian while pregnant or breastfeeding, take vitamin B12 every day; the child's solid foods need animal foods, and if you insist on fully vegan, see a doctor first
• Buy insurance that covers medical care and medical evacuation abroad, not just flight-delay insurance
• Treat any "high-paying job abroad" as a scam: people lured into running telecom fraud are also restricted from leaving China after they return
• Photograph your passport, visa and ID and keep a copy in the cloud; if you lose them, call the police first and then apply for a replacement travel document
• Before driving yourself abroad, confirm whether the place accepts a Chinese driver's license; most "international driving permits" sold online are worthless paper
• Before leaving the country, send your itinerary, lodging and travel companions to a family member and agree how often to check in
• Before going into a KTV, bar or escape room, look at where the safety exits are, and if they are locked or blocked, go somewhere else
• Ask for the price list before you order: entertainment venues must post clear prices, and you should not accept "play first, settle up later"
• If someone in the venue hands you "something," leave right away: harboring and supplying are not "helping a friend"
• Don't eat candy or snacks from strangers, don't drink a drink that has been out of your sight, and don't accept vape cartridges that others hand you
• When your mood is bad enough to be depression, go for a walk or a run: the antidepressant effect size (how big the effect is) grows with intensity
• When anxiety gets in the way of life, a mindfulness-based stress reduction course works no worse than the commonly used anti-anxiety drug
• To settle down on the spot, use 5 minutes of "cyclic sighing": two breaths in, then a long breath out
• Count nearby green space when choosing where to live, but don't expect "going to the park more" to extend your life
• Count schooling in the death-rate ledger too: each extra year of education lowers adult death risk by about 1.9%
• Turn “study or work” into a calculation: compare the three years of pay you'd earn by working now against the yearly income gap you'd gain over the next several decades by staying in school
• Start from the baseline: the global average private return to one more year of education (the part that lands in your own income) is about 9% a year
• After studying, close the book and test yourself instead of rereading
• Spread the same study time over several days instead of learning it all at once
• Don't make highlighting, rereading and summarizing your main way to study
• Mix several kinds of problems when you practice, instead of doing twenty of one kind in a row
• Don't choose how to study by “I'm a visual learner, he's an auditory learner”
• For things you have to memorize, quiz yourself in the way you will use them later, instead of reciting them as written and calling it done
• Before going on to a master's after your bachelor's, first work out the tuition and the two or three years of pay you give up, then see whether your field pays more; if you already work, you can study part-time, and the certificate has the same force as a full-time one
• Before going on to a PhD after your master's, do it only if the job you are aiming at clearly requires one, and count the mental strain before you start
• After every visit, keep your own copy of your medical records, test reports and imaging
• For a serious or urgent injury or illness, go straight to the emergency triage desk and don't line up at the registration window
• If someone dies at home or elsewhere, first tell a natural death from an unnatural one: for an accident, an unknown cause, or someone found after living alone, call the police right away and don't touch the body or the scene
• You are responsible for what users post: set up review, a reporting entry, and when you find illegal content, stop it from spreading right away and report it
• When choosing a server, first ask whether you can live with downtime, then whether anyone will maintain it, and only last compare prices
• Start taking 0.4 mg of folic acid every day when you begin trying to get pregnant, and keep taking it until the end of the first 3 months of pregnancy
• At the first prenatal checkup, get tested for HIV, syphilis and hepatitis B; even if HIV is found, there is free blocking of transmission to the baby
• Don't smoke a single cigarette or drink a single sip during pregnancy, and don't let anyone at home smoke indoors
• At 24 weeks of pregnancy or later, get screened once for gestational diabetes, and don't begrudge the sugar drink
• Memorize this “go to the hospital now” list; it applies throughout pregnancy and for a year after birth
• If your water breaks, lie down where you are, raise your hips, and call 120 (China's ambulance number); don't walk around or take a bath
• If you want labor pain relief, say so directly; it does not raise the risk of cesarean section
• Don't ask for a cesarean section without a medical reason, and don't have surgery just to pick a date
• Don't refuse the newborn heel-prick blood screening and hearing screening
• Don't skip the checkup at 42 days postpartum; in some places it is also a screening for postpartum depression
• If you're pregnant, you don't have to send the cat away: have someone else scoop the litter every day, cook meat through, and wear gloves when handling soil
• Don't use extreme dieting, fasting or induced vomiting to control your weight; if you want to lose weight, do it on the exercise side
• Before an injection, thread lift or surgery, check two things: that the facility's license lists “medical cosmetology”, and that the person doing it is the attending physician
• Avoid the bridge of the nose, the area between the eyebrows and the forehead for facial fillers, and above all don't go to an unlicensed injector to save money
• Don't buy diet pills, slimming coffee, slimming candy or enzyme plums (plums said to be soaked in enzymes) that promise fast weight loss
• Don't use anabolic steroids (“muscle-building injections,” “oral pills”) to build muscle
• If you want a weight-loss drug or a weight-loss injection such as semaglutide, get a prescription at a hospital and follow the doctor's schedule for dose increases and follow-up checks; don't buy from online shops that ship without a prescription, and don't get injections at a beauty salon
• Use sex-hormone drugs only when a doctor has prescribed them and you have regular follow-up checks; don't buy them online or raise the dose yourself
• If “feeling ugly” has reached the point of checking the mirror again and again and wanting to change it again and again, get a body-image assessment before talking about surgery
• For teeth straightening, see a doctor with orthodontic qualifications for an in-person exam and keep your follow-up visits; don't buy aligners online and wear them at home on your own
• In the first days after a loved one dies, don't be alone; if you have heart disease, high blood pressure or diabetes, keep taking your medicine, and call 120 (China's ambulance number) if your chest feels crushed
• After losing a job, first fix your daily routine, your medical insurance and your job-search rhythm, and don't stay home all day
• If a loved one died by suicide, an accident or a homicide, don't try to tough it out; reach out for professional help
• In the first six months after a spouse dies, put meals, sleep, chronic-illness medicine and follow-up checks in the hands of one particular person who keeps watch
• If you have no relatives and no friends, replace “the person who keeps watch on you” with three things: a neighbor who can get into your home, the community's visit list, and an emergency contact in your phone
• After a parent dies, tell the child the truth and let them attend the farewell
• If grief is still stuck after six months and you can't get through your days, register at a psychiatry or clinical psychology department
• Don't start by paying for grief counseling; first see whether your grief is truly stuck (the symptoms in )
• After separation or divorce, don't let your medical insurance lapse, and don't prop yourself up with alcohol
• In the first three months after a blow, put off every big decision that can't be undone
• Take a child to the hospital right away for sudden, worsening severe pain; don't make him hold out until school ends
• Don't put off treatment that is due just to “wait until exams are over”; some windows follow bone age, not the exam calendar
• If a child is bullied, report it to the school the same day and ask for a written response; report fights, extortion and rumor-spreading straight to the police
• Get a child at least 2 hours outdoors every day, the only way to prevent myopia that is currently supported by a randomized trial
• Give no screens at ages 0 to 3, avoid them as far as possible at 3 to 6, and keep non-study use to no more than 1 hour a day for school-age children
• Treat myopia as damage that stays: the stronger the prescription, the more retinal detachment, macular disease and glaucoma later
• Read the report from the yearly school health checkup yourself, and take any abnormal item to a hospital the same year
• Have a child aged 12 to 18 screened for depression once, and don't treat the school's psychological assessment as a diagnosis
• Get pit-and-fissure sealants once the permanent molars come in
• Check whether sleep, homework and getting outdoors are being squeezed out before you fix on how long a child plays
• Don't scold a child who says they like the same sex, throw them out or send them for “conversion”: how the family reacts is linked to whether they attempt suicide
• Don't hit your child, and don't yell or call them stupid: children who are often hit or yelled at have more behavior and emotional problems
• Take a parenting course that teaches concrete methods if your child is hard to manage and you keep losing control and hitting or yelling
• Don't send a child to a locked-down “internet addiction school” or “special training camp”: the law forbids using methods that harm body and mind to curb internet addiction, and children have been locked up to death
• After a spinal cord injury, if there is a sudden severe headache and sweating, help the person sit up straight, loosen clothing, and call 120 (China's ambulance number) at the same time
• Treat the first ten years after a spinal cord injury leaves you disabled as a high-risk period for suicide, and don't write it off as something “cheer up” will fix
• Someone who provides long-term care for a disabled person at home needs someone watching over their own health
• If you use a wheelchair long term, switch to a pressure-relieving cushion and check the sitting bones and tailbone once a day
• Don't buy treatments and devices that claim to “cure paralysis, blindness or deafness”
• Do rehabilitation at a proper facility with a rehabilitation medicine department, and let the therapist set the intensity: harder is not better (the evidence comes from stroke)
• If your hearing is getting worse, get hearing aids, and do it so you can hear, not to prevent dementia
• Before taking two cold medicines or two painkillers together, read the ingredient list; acetaminophen (paracetamol) should come from only one of them, and if you took too much, go to the hospital the same day even if you feel fine
• Don't use aspirin, nimesulide or metamizole for a child's fever, don't give minors cold medicines that contain metamizole, and measure liquid fever reducers with the dosing device that comes in the box
• If you are 60 or older, have had stomach bleeding, or take blood thinners or steroids, ask a doctor before taking painkillers like ibuprofen
• Don't give a child aged 2 or younger combination cold medicines or cough medicines on your own for a cold
• After 20 weeks of pregnancy, don't take painkillers like ibuprofen on your own
• If you buy omeprazole yourself for acid reflux and heartburn, take it for 7 days at most; go straight to the hospital for trouble swallowing, vomiting blood or black stools
• Don't ask a doctor for antibiotics for an ordinary cold
• For diarrhea, first drink oral rehydration salts to replace fluid, and don't give anti-diarrhea drugs to children aged 5 or younger
• Don't take painkillers on more than 15 days a month, or combination painkillers on more than 10 days, or the headache may be caused by the medicine itself
• Clear out expired and unused leftover medicines on a regular schedule, and drop them with their packaging into the hazardous waste bin; don't keep them at home
• Don't drink alcohol while taking antibacterial drugs like cephalosporins or metronidazole, or for 7 days after stopping, and don't touch alcohol-containing medicines such as Huoxiang Zhengqi liquid or cough syrup

Guides revised

• After a new chronic diagnosis: what to do in the first week, the first three months, and after：New point: if you've had gout, don't eat large amounts of meat and seafood at one barbecue or dinner, and drink less.

New

• Don't skip saving just because “people can die at any time, so it's happier to spend the money early”; about 90% of 30-year-olds live to 60
• Before going on to a master's after your bachelor's, first work out the tuition and the two or three years of pay you give up, then see whether your field pays more; if you already work, you can study part-time, and the certificate has the same force as a full-time one
• Before going on to a PhD after your master's, do it only if the job you are aiming at clearly requires one, and count the mental strain before you start

1 revised

• Don't have caffeine after 2 p.m.

6 revised

• Drink 3 to 4 cups of coffee a day, keep total caffeine under 400 mg, and don't add sugar or milk foam
• Don't have caffeine after 2 p.m.
• Don't make only the minimum credit card payment, and don't take installments or consumer loans for purchases; if you must borrow, convert the interest into an annualized rate before comparing
• Before prepaying your mortgage, work through one comparison; don't go by feel
• Before signing a lease, check the ownership certificate and any mortgage, and pay everything by transfer with the purpose noted
• Mix formula with water above 70 ℃, let it cool before feeding, and throw away what is left

2 revised

• When angry, walk away first, and treat the other person as weather, not as an enemy
• Turn “study or work” into a calculation: compare the three years of pay you'd earn by working now against the yearly income gap you'd gain over the next several decades by staying in school

11 revised

• Don't believe that “masturbation harms the body” or that you must “quit lust” to get better; what to watch is whether it is costing you sleep, work and relationships
• If you truly have nowhere to sleep, a 24-hour place is only an emergency fix for one night; go to a rescue station first
• Set a lock-screen passcode on your phone and a PIN on the SIM card
• Check your accounts' signed-in devices and authorized apps every so often, and remove the ones you don't use
• Before signing a lease, check the ownership certificate and any mortgage, and pay everything by transfer with the purpose noted
• Go for follow-up checks at the interval your doctor sets, and record every result in the same notebook
• Don't stop proper treatment to try folk remedies or health supplements
• Keep an older person's money in a separate account, and set a rule that large payments need two people to confirm
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• For big items, think in the order borrow, buy used, buy new, and don't buy everything at once
• In the first three months after a blow, put off every big decision that can't be undone

New

• If you already wanted a dog, count the daily walks as part of your walking, and don't get a dog just to live longer
• Don't count on an AI chatbot to judge your illness or legal problem on its own; before seeing a doctor, going to court or spending big money, find the original source for what it cites and check it
• If an older person walks a dog, hold the leash in the palm of the hand and don't wrap it around the hand, keep the leash short, and first train the dog not to lunge forward on the leash
• If you're pregnant, you don't have to send the cat away: have someone else scoop the litter every day, cook meat through, and wear gloves when handling soil

11 revised

• Put children under 4 in a child safety seat in the car, not on your lap
• After 60, train balance and leg strength, and make the bathroom and stairs at home safer
• A long-distance relationship is no worse than living in the same city; the real hurdle is the first three months after moving in together
• Count the health benefits of marriage, but discount them because the data are observational
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If a dog or cat bites you or breaks the skin, rinse with soap and running water, alternating, for 15 minutes, and get the vaccine the same day
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• Before signing a lease, check the ownership certificate and any mortgage, and pay everything by transfer with the purpose noted
• Count the time cost of raising a child by whose time gets taken up, not by how tiring it is
• Put a baby to sleep on the back, on a firm flat surface, in the same room but not the same bed, with nothing soft in the bed
• Don't buy diet pills, slimming coffee, slimming candy or enzyme plums (plums said to be soaked in enzymes) that promise fast weight loss

Guides revised

• When a stranger is in trouble on the road: walk away or stop：Adds the difference between countries: walking away is legal under Chinese law, but in Germany and some other countries failing to help can mean prison or a fine.

New

• Ask someone close to you who seems off, directly, “Have you thought about suicide?” Asking does not make them think about it more
• If you are vegetarian while pregnant or breastfeeding, take vitamin B12 every day; the child's solid foods need animal foods, and if you insist on fully vegan, see a doctor first

10 revised

• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Brush your teeth properly, clean between your teeth once a day, and replace missing teeth promptly
• Play racket sports such as tennis, badminton and table tennis regularly
• Don't keep adding to your weekly work hours: past about 49 hours, each extra hour adds less and less
• Drink boiled tap water; don't subscribe year-round to bottled water for a dispenser or buy bottled water
• Before you act, ask whether the vendor, platform or company would report it; if you are pursued, get a criminal defense lawyer right away
• If you meet a bear, wild boar or a pack of wild dogs, don't run; turn sideways and back away slowly
• Feed only breast milk for the first 6 months, not even water, start solid foods at 6 months and keep breastfeeding
• Count nearby green space when choosing where to live, but don't expect "going to the park more" to extend your life
• Start taking 0.4 mg of folic acid every day when you begin trying to get pregnant, and keep taking it until the end of the first 3 months of pregnancy

New

• If hot flashes and night sweats around menopause are affecting your life, see a gynecologist about hormone therapy; don't just put up with it, don't buy the drugs yourself, and don't use it to prevent heart disease
• For period pain, take a painkiller such as ibuprofen rather than toughing it out; if the pain keeps you from work or school, or three months of medicine doesn't control it, see a gynecologist

3 revised

• Keep a fire extinguisher, fire blanket, escape smoke hood and first-aid kit at home, and check them once a year
• If osteoporosis is found, or you have broken a bone from a light fall, ask a doctor to prescribe an anti-osteoporosis drug and keep using it; calcium supplements are not a substitute
• If you are 60 or older, have had stomach bleeding, or take blood thinners or steroids, ask a doctor before taking painkillers like ibuprofen

Guides revised

• Home emergency supplies: what to buy, where to keep it, how often to check：Adds how to use a fire blanket: pull the tapes, cover from your side toward the fire, don't touch the fabric bare-handed. For a pan fire, turn off the heat and put a lid on; using a blanket on oil fires is disputed.

Before changing jobs or cities: the accounts to count and the procedures to handle

New

• Don't count on heavy calcium supplements or bone broth to make bones heal faster after a fracture

2 revised

• Quit smoking, and the earlier the better
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself

New

• Fit good locks on doors and windows, put a motion-sensor light outside the door, and really lock up when you go out: these are what prevent burglary, and an alarm alone shows no benefit
• Don't hand your code, keys and private files to an unknown "AI relay service", especially when you let the AI run commands automatically
• For teeth straightening, see a doctor with orthodontic qualifications for an in-person exam and keep your follow-up visits; don't buy aligners online and wear them at home on your own
• Don't send a child to a locked-down “internet addiction school” or “special training camp”: the law forbids using methods that harm body and mind to curb internet addiction, and children have been locked up to death

9 revised

• Don't pick up, take apart or sell metal parts of unknown origin, and stay away from anything with a trefoil warning sign
• Brush your teeth properly, clean between your teeth once a day, and replace missing teeth promptly
• Don't pay for “sexual orientation conversion” or “homosexuality treatment,” and don't send a family member to it
• Call the police and don't use your hands when a conflict starts; the one who strikes first makes it easy for the other side's hitting back to count as justified self-defense
• Localizing comics, reposting films and TV, sharing cloud-drive files and pirated e-books is infringement even without charging; running ads or collecting membership fees can lead to a prison sentence
• Don't make or sell game cheats or assist tools, including AI assists that "only read the screen and never touch memory," and don't sell modified versions that add features to software like WeChat
• Don't test other people's systems without written authorization; "good intentions" and "reporting afterward" are not defenses
• If a stranger demands money from you in the wild, give it to him, don't fight, note his features, and report to the police after you get away
• Check whether sleep, homework and getting outdoors are being squeezed out before you fix on how long a child plays

Guides revised

• Is marriage worth it: breaking one muddled account into five clear ones：New part on legal status: a spouse is next of kin, who can consent to surgery and act as guardian when you can't; unmarried partners can get most of this through a power of attorney, a chosen guardian and a will.

New

• Before using an angle grinder, fit the guard, wear safety glasses plus a face shield, hold it firmly with both hands, and never mount a wood saw blade to cut wood
• Don't count on learning a “correct lifting posture” or taking a lifting course to prevent back pain; what to cut is the weight and number of lifts, and exercise regularly

1 revised

• Turn down any "part-time job" that asks you to receive money, withdraw cash or transfer funds with your own card, no matter how big the fee

New

• Refuse when an acquaintance asks you to "scan your face and be a witness" to take out a loan, or asks you to read out a verification code: this is called an AB loan, and the borrower is you, not a guarantor
• Localizing comics, reposting films and TV, sharing cloud-drive files and pirated e-books is infringement even without charging; running ads or collecting membership fees can lead to a prison sentence
• Before paying someone to run your online shop, taking a shop-opening course, or doing "no-inventory" selling, ask whether more money will be demanded later and where the sales will come from

8 revised

• Don't make only the minimum credit card payment, and don't take installments or consumer loans for purchases; if you must borrow, convert the interest into an annualized rate before comparing
• Teach your child one sentence: anyone who tells you to use a parent's phone or read out a verification code is a scammer
• Don't pay a deposit, don't hand over your ID, don't sign a “training loan”, don't join a pyramid scheme, don't borrow at loan-shark rates
• Remember the hard rules against fraud: don't trust incoming calls, don't give out information, don't click links, double-check before any transfer; the seven most common scams all have this shape
• Read the whole paper before you sign, don't sign for others, and don't sign a blank page
• Write a clear IOU when you lend money, and before you guarantee someone else's debt, think about whether you are willing to pay it for him
• Images on products, packaging, tags and promotional pictures must be made by you or bought under a license; changing the color or adding an icon doesn't make it "altered"
• Turn on two-step verification for your email, payment and social accounts, and prefer a confirmation pop-up on your phone over a text-message code

New

• Before stepping onto wild ice, drill a hole and measure the thickness; don't go on if it is under 15 cm, and stay off river ice and the edges of ice-fishing holes

2 revised

• Keep children in sight near water, and wear a life jacket when boating or swimming in open water
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself

After a new chronic diagnosis: what to do in the first week, the first three months, and after

New

• Women over 65 should get one dual-energy X-ray bone density scan, and after menopause, women with risk factors for osteoporosis shouldn't wait until 65
• If osteoporosis is found, or you have broken a bone from a light fall, ask a doctor to prescribe an anti-osteoporosis drug and keep using it; calcium supplements are not a substitute
• Turn on the range hood when you stir-fry or deep-fry, from the moment you light the stove until you finish cooking
• If your relationship is stuck in repeated fights and cold silences, go to couples therapy together: waiting around will basically not fix it by itself
• If a baby under 1 year old is choking and can't cry, lay the baby face down and give 5 back blows, turn the baby over and give 5 chest pushes, alternating, and don't press the belly
• If a baby under 1 year old is unresponsive and not breathing normally, put the phone on speaker and call 120 (China's ambulance number), and give infant CPR: 30 pushes and 2 breaths
• If an older person's cataract already affects seeing the way, go to an eye doctor for an assessment and surgery; if both eyes have it, don't delay the second one too long
• Watch for the signs of newborn jaundice: if the baby is yellow within 24 hours of birth, or can't be woken or won't feed, go to the hospital the same day; if it is getting more yellow or the stool is pale, get it checked as soon as possible
• Don't hit your child, and don't yell or call them stupid: children who are often hit or yelled at have more behavior and emotional problems
• Take a parenting course that teaches concrete methods if your child is hard to manage and you keep losing control and hitting or yelling
• Clear out expired and unused leftover medicines on a regular schedule, and drop them with their packaging into the hazardous waste bin; don't keep them at home
• Don't drink alcohol while taking antibacterial drugs like cephalosporins or metronidazole, or for 7 days after stopping, and don't touch alcohol-containing medicines such as Huoxiang Zhengqi liquid or cough syrup

53 revised

• Replace gas hoses and stoves when they expire, don't alter the pipes yourself, and feel free to turn away gas-company salespeople who come to your door
• After 35, if you are overweight, get a fasting blood glucose test once, and repeat it every 3 years even if it's normal
• After 60, train balance and leg strength, and make the bathroom and stairs at home safer
• Lose weight, quit smoking, and keep blood pressure and blood sugar under control; erectile function can improve along with them
• After any high-risk act, get tested for HIV once; the CDC tests for free and keeps the result confidential
• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Walk 7000–8000 steps a day, or build up 150–300 minutes of brisk walking a week
• Sleep about 7 hours a night on a regular schedule
• Drink less alcohol, or none
• If you drink every day and your hands shake and your heart races when you stop, don't try to quit cold turkey on your own
• To drink less, first count how much you drink in a week, then spend a few minutes talking to a doctor
• Eat less ultra-processed food (potato chips, instant noodles, pastries, ready meals)
• The longer you work night shifts, the higher your cardiovascular risk; if you can move to another position, do it sooner
• Get up at the same time every day, weekends included
• Sleep 7 to 8 hours a night, and don't treat 6 hours as enough
• If you're drowsy in the afternoon, nap for 10 minutes, not half an hour
• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• Treat police officers, doctors and bank tellers as people working by the rules of their jobs, not as roles: what moves things forward is paperwork and deadlines, not emotion
• Don't make “how other people are doing” your daily reading: set limits on, or turn off, apps that show your peers' posts
• When angry, don't vent by hitting a punching bag or running a lap; slow your body down first
• If procrastination is already affecting your life, use self-help materials backed by randomized trials; you don't have to see a therapist
• Set a hard limit on short videos and aimless scrolling
• Turn down extended warranties on electronics
• Don't trade stocks often, and trade even less when the market soars or crashes
• Buy insurance only for losses you can't bear yourself, and cover losses you can bear with your emergency fund
• Before you sign at a bank counter, check whether what you are holding is a deposit or insurance
• Don't spend big on supplements, herbal tonic pastes or tonic products to “balance the body”
• Don't buy blue-light glasses to “protect your eyesight,” and don't believe that “a few months facing a screen ruins your eyes,” but treat swollen, painful, red eyes as an emergency
• Don't rely on a general checkup package to prevent disease; get the few screenings that have evidence for your age and sex
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Don't spend more on a home, car or social circle to “move up a notch among the people around you”
• Don't believe that “willpower is like a muscle that runs out after a while”
• Don't count on eating breakfast or 16:8 intermittent fasting to control your weight; choose meal times you can keep up long term
• Treat thoughts like "take someone down with me" or "die together" as an emergency: leave the scene, hand your car keys and knife to someone else, and call 12356
• Don't lend your ID card, don't use someone else's, and don't use another person's documents to register, open a card or buy a ticket
• Whether a relationship is good depends mainly on how you feel in it, not on the other person's credentials
• Keep a separate account for "marrying for your elders," and don't mix it with your own
• Treat the quality of a relationship as a health account: argue about the issue, not the person, and don't insult or sneer
• Don't marry while hiding your sexual orientation, and don't treat a marriage in name only as a convenient shortcut: legally it is a real marriage, and the only way out is divorce
• When you build a product with GPL or other open-source code, open your source or change the license as the license requires, and don't assume "nobody will enforce it"
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If someone swallows cleaner, pesticide or medicine, don't make them vomit; take the bottle and go for care at once. If it splashes into the eyes or on the skin, rinse with plenty of water for at least 15 minutes
• If acid, alkali or another chemical splashes on you, take off the contaminated clothing at once, rinse with plenty of running water, hold the eyelids open when rinsing the eyes, and don't leave until you have rinsed long enough
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• If a knife, steel rod or glass is stuck in the body, press around the object to stop bleeding and do not pull it out
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• Much of the damage from dust, noise and toxic chemicals is irreversible (for example pneumoconiosis and noise-induced deafness): the employer must supply protective gear, and you can refuse work with no protective measures
• Photograph your passport, visa and ID and keep a copy in the cloud; if you lose them, call the police first and then apply for a replacement travel document
• Count schooling in the death-rate ledger too: each extra year of education lowers adult death risk by about 1.9%
• Don't use extreme dieting, fasting or induced vomiting to control your weight; if you want to lose weight, do it on the exercise side
• If you have no relatives and no friends, replace “the person who keeps watch on you” with three things: a neighbor who can get into your home, the community's visit list, and an emergency contact in your phone

New

• If you keep gambling with borrowed money and your mood stays low, call 12356 (China's national mental-health hotline) first, then hand your bank cards and payment passwords to a family member to manage
• If you are a man who has sex with men and has high-risk sex, ask a designated HIV hospital about pre-exposure prophylaxis; taken on schedule, it cuts infections by about 70%
• Don't believe that “masturbation harms the body” or that you must “quit lust” to get better; what to watch is whether it is costing you sleep, work and relationships
• Don't pay for “sexual orientation conversion” or “homosexuality treatment,” and don't send a family member to it
• Don't marry while hiding your sexual orientation, and don't treat a marriage in name only as a convenient shortcut: legally it is a real marriage, and the only way out is divorce
• After a sexual assault, first get to a safe place and call 110 (China's police number); before the medical exam don't shower, wash clothes or tidy the room, and go to a hospital within 72 hours
• Check whether sleep, homework and getting outdoors are being squeezed out before you fix on how long a child plays
• Don't scold a child who says they like the same sex, throw them out or send them for “conversion”: how the family reacts is linked to whether they attempt suicide

25 revised

• Replace gas hoses and stoves when they expire, don't alter the pipes yourself, and feel free to turn away gas-company salespeople who come to your door
• Don't push an e-bike into a stairwell or elevator, and don't charge it at home
• If you are stabbed by a nail or a splinter, or a wound gets dirt in it, have it treated that day and ask whether you need a tetanus shot
• Go to sleep on time; don't stay up for games, short videos or pornography
• When deciding whether to continue, look only at future effort and future return, not at how much you have already put in
• Walk away when you see "high returns," "principal guaranteed" or "sure profit"
• Use broad index funds instead of actively managed funds as the long-term core holding (the part of your money you hold for the long run)
• Among similar funds, prefer the one with lower fees
• Don't pay for fortune-telling, tarot or horoscopes to make decisions
• Remember the hard rules against fraud: don't trust incoming calls, don't give out information, don't click links, double-check before any transfer; the seven most common scams all have this shape
• Ask the price before home repair, vehicle inspection or renovation work begins, and watch the work from beside the worker
• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• Get a premarital checkup, and a serious illness must be truthfully disclosed to the other person before registration
• Don't be a nominal shareholder, and don't hold equity on someone else's behalf
• At your post, follow procedure, and before doing a favor outside procedure, think through who bears responsibility
• For heavy bleeding, first press hard on the wound with your hand; if you can't stop it on a limb, put on a tourniquet; and call 120 (China's ambulance number) at the same time
• If a carbon monoxide alarm sounds, or a whole room of people get headaches and nausea at once, get outside first, then make the call
• In high heat, if there is dizziness, nausea, no sweating or confusion, move to a cool place at once, take off clothing and pour water to cool down, don't give water to someone who isn't fully conscious, and call 120 (China's ambulance number)
• In a fire, crawl low, feel the door before opening it, don't open it if it is hot, take the stairs and not the elevator, and once you are out don't go back
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• If you are lost or your vehicle breaks down in the Gobi, a desert or empty country, stay where you are or by the vehicle: report your position first, then get shade and keep warm, conserve water, and don't wander
• If bitten by a snake, sit down and keep still, take off rings and watches, get to a hospital quickly for antivenom, and don't cut, suck or tie tightly
• If a tick is attached, pull it out steadily with pointed tweezers close to the skin, and don't put on oil or burn it
• For diapers, don't go by brand; look at three things: the fit, how often you change, and whether the product has been named in a spot-check report
• Buy insurance that covers medical care and medical evacuation abroad, not just flight-delay insurance

§34 Don't get hurt by the medicine cabinet at home

New

• Buy insurance only for losses you can't bear yourself, and cover losses you can bear with your emergency fund
• If people at home live on your income, buy term life insurance for the earner first, not for the children
• Before you sign at a bank counter, check whether what you are holding is a deposit or insurance
• Before taking two cold medicines or two painkillers together, read the ingredient list; acetaminophen (paracetamol) should come from only one of them, and if you took too much, go to the hospital the same day even if you feel fine
• Don't use aspirin, nimesulide or metamizole for a child's fever, don't give minors cold medicines that contain metamizole, and measure liquid fever reducers with the dosing device that comes in the box
• If you are 60 or older, have had stomach bleeding, or take blood thinners or steroids, ask a doctor before taking painkillers like ibuprofen
• Don't give a child aged 2 or younger combination cold medicines or cough medicines on your own for a cold
• After 20 weeks of pregnancy, don't take painkillers like ibuprofen on your own
• If you buy omeprazole yourself for acid reflux and heartburn, take it for 7 days at most; go straight to the hospital for trouble swallowing, vomiting blood or black stools
• Don't ask a doctor for antibiotics for an ordinary cold
• For diarrhea, first drink oral rehydration salts to replace fluid, and don't give anti-diarrhea drugs to children aged 5 or younger
• Don't take painkillers on more than 15 days a month, or combination painkillers on more than 10 days, or the headache may be caused by the medicine itself

1 revised

• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there

New

• Cook with vegetable oil instead of lard and butter, don't swap oils for your health, and don't count on flaxseed oil to protect your heart

266 revised

• Wear a helmet on a motorcycle or e-bike, and fasten the strap
• Replace gas hoses and stoves when they expire, don't alter the pipes yourself, and feel free to turn away gas-company salespeople who come to your door
• Don't pick, buy or eat wild mushrooms; no “folk method” of telling safe ones apart works
• Don't push an e-bike into a stairwell or elevator, and don't charge it at home
• Check your blood pressure, and if it's high, take medicine to get it down to target
• Put children under 4 in a child safety seat in the car, not on your lap
• From 45 to 50, start colorectal cancer screening with a fecal immunochemical test for hidden blood in stool, or a colonoscopy
• People with cardiovascular disease and older adults should get a flu shot every year
• Get the shingles vaccine after 50
• Heavy smokers should get a low-dose chest CT every year
• If you have erection problems, get your cardiovascular health checked first; don't treat it as only a “private matter”
• Lose weight, quit smoking, and keep blood pressure and blood sugar under control; erectile function can improve along with them
• Use a condom for the whole of every sexual act, and don't share needles with anyone
• After any high-risk act, get tested for HIV once; the CDC tests for free and keeps the result confidential
• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Don't count on being “saved” as a safety net: after swallowing pesticide or breathing in gas, the emergency room can save a life, but not the lungs or the brain
• Don't gamble on “a few days lying down and I'll be fine” after a fall from a height: most people who reach a trauma ICU survive, but the cost is counted in years
• Don't sell a kidney for money thinking “one less kidney is nothing”: the remaining one does the work of two, and 86% of people who sold a kidney said their health got worse afterward
• Don't pick up, take apart or sell metal parts of unknown origin, and stay away from anything with a trefoil warning sign
• Quit smoking, and the earlier the better
• Don't smoke at home or in the car, and don't let guests smoke at home
• Set a quit day and stop all at once on that day, rather than cutting down gradually first
• Consider e-cigarettes only if you really can't quit otherwise, and don't touch them if you don't already smoke
• Don't drink sugary drinks, and switching to sugar-free doesn't solve it
• Switch the table salt at home to low-sodium salt (potassium salt)
• Get your blood lipids tested regularly as an adult, every 2 to 5 years before 40 and every year from 40; if you have high blood pressure or high cholesterol, take your medicine regularly as prescribed and don't stop on your own
• Play racket sports such as tennis, badminton and table tennis regularly
• Don't sit for long stretches; get up and move every so often
• If you drink every day and your hands shake and your heart races when you stop, don't try to quit cold turkey on your own
• Swap some of your red meat for fish and poultry
• Drink tea more than 3 times a week
• Don't cook or heat with coal and firewood; switch to electricity or gas
• Let hot things cool before you drink them; don't drink scalding tea, soup or coffee
• Get out in the sun during the day; don't go all day without light
• Keep your BMI between 20 and 25, and lose weight if you are overweight
• Eat chili peppers more than 4 times a week
• Have 1 or 2 servings of milk or yogurt a day
• You don't have to give up eggs; up to one a day is fine
• Catch up on sleep the night after a late night, rather than saving it for the weekend
• The longer you work night shifts, the higher your cardiovascular risk; if you can move to another position, do it sooner
• Sleep 7 to 8 hours a night, and don't treat 6 hours as enough
• Don't have caffeine after 2 p.m.
• Do one thing at a time; don't reply to messages during a meeting
• Go to sleep on time; don't stay up for games, short videos or pornography
• Don't make big decisions or send important messages late at night
• If you're drowsy in the afternoon, nap for 10 minutes, not half an hour
• Don't keep adding to your weekly work hours: past about 49 hours, each extra hour adds less and less
• When you notice you keep replaying the same upsetting thing, switch to something you do with your hands
• Treat thoughts like “things will definitely get worse” as a symptom, not as fact
• Cut back on relationships that drain you, and learn to turn down requests you don't want to take on
• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• Treat police officers, doctors and bank tellers as people working by the rules of their jobs, not as roles: what moves things forward is paperwork and deadlines, not emotion
• Don't make “how other people are doing” your daily reading: set limits on, or turn off, apps that show your peers' posts
• When you feel that “everyone saw me embarrass myself,” cut that estimate in half
• Treat the thought “other people demand perfection from me” as a symptom, not as fact
• If something is weighing on you, you can write down your thoughts and feelings over several days, but don't expect it to cure anything
• Write down your exit condition before you start
• When deciding whether to continue, look only at future effort and future return, not at how much you have already put in
• Set a date for yourself on anything that has no outside deadline
• Treat procrastination as avoiding something unpleasant, not as not trying hard enough
• Put your own money on the line to make yourself follow through, but first ask whether you would be willing to
• Count new habits in months, not in "21 days"
• If procrastination is already affecting your life, use self-help materials backed by randomized trials; you don't have to see a therapist
• Use your own hourly wage to decide which chores to outsource
• Put commute time first when choosing where to live, and shorten your one-way commute
• Turn off all auto-renewals and renew by hand when a subscription expires
• Don't buy lottery tickets
• Walk away when you see "high returns," "principal guaranteed" or "sure profit"
• Don't make only the minimum credit card payment, and don't take installments or consumer loans for purchases; if you must borrow, convert the interest into an annualized rate before comparing
• Don't tip streamers, don't top up games, and don't place orders on impulse
• Teach your child one sentence: anyone who tells you to use a parent's phone or read out a verification code is a scammer
• Turn down extended warranties on electronics
• Drink boiled tap water; don't subscribe year-round to bottled water for a dispenser or buy bottled water
• Use broad index funds instead of actively managed funds as the long-term core holding (the part of your money you hold for the long run)
• Don't put all your money on one stock, one platform or one house
• Set a 24-hour cooling-off period for large nonessential purchases, and make good use of 7-day no-reason returns when shopping online
• Don't stock up because of "crossed-out prices" and big sales
• Buy pure protection insurance first, and treat "return" and "dividend" features as parts that aren't guaranteed
• Before prepaying your mortgage, work through one comparison; don't go by feel
• Count bead bracelets, jade, luxury watches and designer toys by "money spent," not "money saved"
• Treat blind boxes, gacha pulls and other random sales as money that will not come back
• Sell stocks that have lost money by a rule you set in advance, and don't count on averaging down to turn things around
• Don't trade stocks often, and trade even less when the market soars or crashes
• Don't take a multivitamin to live longer or prevent heart and blood vessel disease
• Don't take ordinary fish oil to prevent heart and blood vessel disease
• Don't take vitamin D to live longer if you aren't deficient in it
• Don't take antioxidant supplements (beta-carotene, vitamin E, vitamin A) to prevent cancer
• Don't count on glucosamine/chondroitin to treat knee osteoarthritis
• Don't rely on vitamin C to prevent colds
• Don't get a whole-body PET-CT or a “tumor marker package” when you have no symptoms
• Don't count on a fitness band or watch that tracks your activity to help you lose weight
• Don't pay a premium for organic food to be “healthier”
• Don't spend big on supplements, herbal tonic pastes or tonic products to “balance the body”
• Don't take probiotics long term when you have no gut problem
• Don't force yourself into cold showers to “boost immunity”
• Don't buy detox, colon cleanse, enzyme or alkaline water products
• Don't force yourself to drink to reach “8 glasses a day”
• Don't pay for fortune-telling, tarot or horoscopes to make decisions
• Don't buy blue-light glasses to “protect your eyesight,” and don't believe that “a few months facing a screen ruins your eyes,” but treat swollen, painful, red eyes as an emergency
• Don't treat giving blood as a health measure: there is no randomized trial behind “detox, lower blood fats, prevent heart attack,” and giving too often really does leave you short of iron
• Don't rely on a general checkup package to prevent disease; get the few screenings that have evidence for your age and sex
• Don't start uric-acid-lowering drugs just because a checkup found high uric acid when you've never had gout pain
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Don't cut out calcium to prevent kidney stones
• Don't buy crystals, bead bracelets or pixiu charms for “changing your luck,” “attracting wealth” or “nurturing” you
• Don't count on buying things to improve your mood or sense of identity
• Don't spend more on a home, car or social circle to “move up a notch among the people around you”
• Don't believe that “willpower is like a muscle that runs out after a while”
• Don't count on eating breakfast or 16:8 intermittent fasting to control your weight; choose meal times you can keep up long term
• Don't just send out resumes; use a systematic job search method: learn the techniques, set a target and get people to help
• Don't pay a deposit, don't hand over your ID, don't sign a “training loan”, don't join a pyramid scheme, don't borrow at loan-shark rates
• Cut housing and food to the minimum: rent a shared room by the month instead of by the day, and cook for yourself or use a subsidized meal canteen instead of delivery
• Remember the hard rules against fraud: don't trust incoming calls, don't give out information, don't click links, double-check before any transfer; the seven most common scams all have this shape
• Don't treat a face on video or a voice on the phone as verification; hang up before any transfer and call back on an old number from your own contacts
• Treat thoughts like "take someone down with me" or "die together" as an emergency: leave the scene, hand your car keys and knife to someone else, and call 12356
• Don't curse, spread rumors or forward unchecked claims online; if you are cyberbullied, keep evidence first, then call the police
• If you are cheated in online shopping or a secondhand deal, complain to the platform first, then call the police, then work out whether a lawsuit is worth it
• Ask the price before home repair, vehicle inspection or renovation work begins, and watch the work from beside the worker
• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• Don't secretly film other people, and don't install cameras in rental rooms, guesthouse rooms or hotel rooms
• Don't eat wild game, and don't buy, sell or keep protected animals as pets; don't dig up or trade wild orchids, cliff arborvitae or yew either
• Don't lend your ID card, don't use someone else's, and don't use another person's documents to register, open a card or buy a ticket
• Work out the bill before you hit someone: detention, paying money, a prison sentence
• Don't stage accidents or exaggerate losses to cheat on a claim: this is the crime of insurance fraud, and the people who testify for you, repair your car or assess your loss are convicted with you
• Don't sell your own organs and don't help anyone find a donor: a kidney that earns the seller just over 20,000 CNY is resold for 200,000 CNY, and the money is confiscated and a fine of 10 to 20 times the transaction amount is imposed
• Meet more people instead of fixating on one: whether two people click can't be predicted before they meet
• Whether a relationship is good depends mainly on how you feel in it, not on the other person's credentials
• To get closer, take turns answering a set of questions that go from light to deep; don't learn lines
• A long-distance relationship is no worse than living in the same city; the real hurdle is the first three months after moving in together
• Count the health benefits of marriage, but discount them because the data are observational
• Count the time cost as unpaid work, and agree on the division of labor before you register
• Keep a separate account for "marrying for your elders," and don't mix it with your own
• Before you act, ask whether the vendor, platform or company would report it; if you are pursued, get a criminal defense lawyer right away
• Don't make or sell game cheats or assist tools, including AI assists that "only read the screen and never touch memory," and don't sell modified versions that add features to software like WeChat
• Don't take source code, customer lists or technical documents when you leave, don't upload them to a personal cloud drive, and don't reuse them at your next employer
• Don't run your own programs on other people's computers, servers or cameras, and don't use company machines to mine cryptocurrency
• Don't test other people's systems without written authorization; "good intentions" and "reporting afterward" are not defenses
• Report vulnerabilities as the rules require, and before they are fixed don't publish the details, release exploit tools or hand them to anyone abroad
• Code written during work hours or with company resources belongs to the company; do your own open-source projects on your own time and equipment, with no company code mixed in
• When you build a product with GPL or other open-source code, open your source or change the license as the license requires, and don't assume "nobody will enforce it"
• When building an app, collect only the personal information the business needs, get a guardian's consent for children under 14, and write the privacy policy clearly
• Start a business only with money you can afford to lose; don't touch the family's savings or borrow to open
• Don't sign a personal guarantee on a company loan, and your spouse shouldn't sign along with you
• Images on products, packaging, tags and promotional pictures must be made by you or bought under a license; changing the color or adding an icon doesn't make it "altered"
• At your post, follow procedure, and before doing a favor outside procedure, think through who bears responsibility
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If a mouth suddenly droops, one arm goes weak or speech is slurred, call 120 (China's ambulance number) at once; don't wait and don't drive there yourself
• If there is sudden spinning dizziness with unsteadiness, double vision, blackout in one eye, or the fingertip can't reach your own nose, treat it as a stroke and call 120 (China's ambulance number)
• If one eye suddenly goes dark like a curtain being pulled down, treat it as a stroke and go to the emergency room the same day, even if it clears up in a few minutes
• If one eye is swollen, painful and red, lights have a rainbow ring around them, and there is headache with nausea or vomiting, go to the eye emergency room the same day
• If there is a sudden tearing pain that moves from the chest to the back and down to the lower back, call 120 (China's ambulance number) and say clearly that it "feels like tearing"
• If there is a sudden "worst headache of your life" that reaches its peak within an hour, go to the emergency room for a head CT right away
• If an older person, two or three weeks to a few months after bumping their head, becomes unsteady on their feet, slow, sleepy or weak on one side, get a head CT
• For heavy bleeding, first press hard on the wound with your hand; if you can't stop it on a limb, put on a tourniquet; and call 120 (China's ambulance number) at the same time
• If a dog or cat bites you or breaks the skin, rinse with soap and running water, alternating, for 15 minutes, and get the vaccine the same day
• After a scald, run cool water over it right away for 20 minutes, and don't put on toothpaste or soy sauce
• If a rash suddenly spreads over the body with trouble breathing or dizziness, treat it as anaphylaxis, and call 120 (China's ambulance number) at once and say so clearly
• If someone has a seizure and falls, clear the area around them, lay them on their side, time it by the clock, and put nothing in their mouth
• If a person with diabetes suddenly shakes, breaks into a cold sweat or slurs speech, first give 15 grams of sugar and recheck after 15 minutes
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If someone swallows cleaner, pesticide or medicine, don't make them vomit; take the bottle and go for care at once. If it splashes into the eyes or on the skin, rinse with plenty of water for at least 15 minutes
• If acid, alkali or another chemical splashes on you, take off the contaminated clothing at once, rinse with plenty of running water, hold the eyelids open when rinsing the eyes, and don't leave until you have rinsed long enough
• A person with heat illness who is awake should drink cool light salt water or a sports drink in small amounts, often; don't gulp, and avoid alcohol and high-sugar drinks
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• In an earthquake, first see what kind of building you are in: in a building built to seismic standards take cover in place, and in an old building that could collapse, go out if the door is a few steps away
• If you meet a bear, wild boar or a pack of wild dogs, don't run; turn sideways and back away slowly
• If caught by a thunderstorm outdoors, get into a hard-topped vehicle or building, and stay away from ridges, lone trees, open water and metal
• Going up to a high plateau, climb by sleeping altitude (how high you sleep that night) and go down if symptoms get worse; don't tough it out
• If a stranger demands money from you in the wild, give it to him, don't fight, note his features, and report to the police after you get away
• If you come upon a group fighting, back away and leave; don't step in to break it up, don't stand and watch, and don't pick up anything from the ground; if you report it, move to a safe distance and dial 110 (China's police number)
• If you may have been exposed to HIV, get the preventive medicine within 72 hours, the sooner the better
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself
• Turn on two-step verification for your email, payment and social accounts, and prefer a confirmation pop-up on your phone over a text-message code
• Give your email its own password, and don't reuse it on any website
• Set a lock-screen passcode on your phone and a PIN on the SIM card
• When your phone is lost, follow this order: report the SIM card lost, lock the phone remotely, change passwords, call the police, freeze your bank cards
• Before signing a lease, check the ownership certificate and any mortgage, and pay everything by transfer with the purpose noted
• Take your medicine as prescribed to the end of the course, and don't stop just because you feel better
• Go for follow-up checks at the interval your doctor sets, and record every result in the same notebook
• If you have had a kidney stone, drink 2.5–3 liters of water a day and keep salt to no more than 6 grams
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• Stay away from any "invest for your retirement" scheme that asks an older person to pay first: cards, beds, retirement apartments, travel-retirement and senior products are all the same illegal fund-raising
• If someone at home is bedridden for a long time, treat pressure sores as the number one enemy: use a powered air mattress, turn them on a schedule, and check the bony spots every day
• Count the time cost of raising a child by whose time gets taken up, not by how tiring it is
• Count the money in three stretches: ages 0 to 3, compulsory education, and after compulsory education
• Keep a separate account for having a child for your elders, for the marriage, and for old-age support
• Much of the damage from dust, noise and toxic chemicals is irreversible (for example pneumoconiosis and noise-induced deafness): the employer must supply protective gear, and you can refuse work with no protective measures
• Don't believe "get to your workstation and it counts as a work injury": if you suddenly feel unwell, call 120 (China's ambulance number) first, don't rush to clock in
• If you are bullied, insulted or obstructed at work over a long time, don't just endure it: write it down and keep evidence first, then take the complaint, police or arbitration route that fits
• Put a baby to sleep on the back, on a firm flat surface, in the same room but not the same bed, with nothing soft in the bed
• Give the first hepatitis B vaccine shot within 24 hours of birth
• Get all the vaccines in the national immunization program on schedule, which are free all the way, and if you miss one, only catch up on the doses not yet given
• Feed only breast milk for the first 6 months, not even water, start solid foods at 6 months and keep breastfeeding
• Mix formula with water above 70 ℃, let it cool before feeding, and throw away what is left
• Do not give honey to a child under 1 year old
• Be sure the vitamin K shot is given at birth
• However tired or angry you are, never shake a baby
• For big items, think in the order borrow, buy used, buy new, and don't buy everything at once
• If a child has severe eczema or an egg allergy, don't avoid peanuts: add them early as the doctor directs, but never give whole peanuts
• Buy insurance that covers medical care and medical evacuation abroad, not just flight-delay insurance
• Treat any "high-paying job abroad" as a scam: people lured into running telecom fraud are also restricted from leaving China after they return
• Before driving yourself abroad, confirm whether the place accepts a Chinese driver's license; most "international driving permits" sold online are worthless paper
• Before leaving the country, send your itinerary, lodging and travel companions to a family member and agree how often to check in
• If someone in the venue hands you "something," leave right away: harboring and supplying are not "helping a friend"
• Don't eat candy or snacks from strangers, don't drink a drink that has been out of your sight, and don't accept vape cartridges that others hand you
• When your mood is bad enough to be depression, go for a walk or a run: the antidepressant effect size (how big the effect is) grows with intensity
• When anxiety gets in the way of life, a mindfulness-based stress reduction course works no worse than the commonly used anti-anxiety drug
• To settle down on the spot, use 5 minutes of "cyclic sighing": two breaths in, then a long breath out
• Treat meeting people regularly as a health expense, and don't look for people only when your mood is low
• Count nearby green space when choosing where to live, but don't expect "going to the park more" to extend your life
• Count schooling in the death-rate ledger too: each extra year of education lowers adult death risk by about 1.9%
• Turn “study or work” into a calculation: compare the three years of pay you'd earn by working now against the yearly income gap you'd gain over the next several decades by staying in school
• Start from the baseline: the global average private return to one more year of education (the part that lands in your own income) is about 9% a year
• When choosing a skill, give priority to work that needs your hands and on-the-spot judgment; it is the hardest to automate away
• After studying, close the book and test yourself instead of rereading
• Spread the same study time over several days instead of learning it all at once
• Don't make highlighting, rereading and summarizing your main way to study
• Don't choose how to study by “I'm a visual learner, he's an auditory learner”
• For things you have to memorize, quiz yourself in the way you will use them later, instead of reciting them as written and calling it done
• If someone dies at home or elsewhere, first tell a natural death from an unnatural one: for an accident, an unknown cause, or someone found after living alone, call the police right away and don't touch the body or the scene
• You are responsible for what users post: set up review, a reporting entry, and when you find illegal content, stop it from spreading right away and report it
• When choosing a server, first ask whether you can live with downtime, then whether anyone will maintain it, and only last compare prices
• Start taking 0.4 mg of folic acid every day when you begin trying to get pregnant, and keep taking it until the end of the first 3 months of pregnancy
• At the first prenatal checkup, get tested for HIV, syphilis and hepatitis B; even if HIV is found, there is free blocking of transmission to the baby
• Don't smoke a single cigarette or drink a single sip during pregnancy, and don't let anyone at home smoke indoors
• If you have risk factors for preeclampsia, start one low-dose aspirin a day after 12 weeks of pregnancy, as your doctor directs
• At 24 weeks of pregnancy or later, get screened once for gestational diabetes, and don't begrudge the sugar drink
• Memorize this “go to the hospital now” list; it applies throughout pregnancy and for a year after birth
• If your water breaks, lie down where you are, raise your hips, and call 120 (China's ambulance number); don't walk around or take a bath
• If you want labor pain relief, say so directly; it does not raise the risk of cesarean section
• Don't ask for a cesarean section without a medical reason, and don't have surgery just to pick a date
• Don't skip the checkup at 42 days postpartum; in some places it is also a screening for postpartum depression
• Don't use extreme dieting, fasting or induced vomiting to control your weight; if you want to lose weight, do it on the exercise side
• Before an injection, thread lift or surgery, check two things: that the facility's license lists “medical cosmetology”, and that the person doing it is the attending physician
• Avoid the bridge of the nose, the area between the eyebrows and the forehead for facial fillers, and above all don't go to an unlicensed injector to save money
• Don't buy diet pills, slimming coffee, slimming candy or enzyme plums (plums said to be soaked in enzymes) that promise fast weight loss
• Don't use anabolic steroids (“muscle-building injections,” “oral pills”) to build muscle
• If you want a weight-loss drug or a weight-loss injection such as semaglutide, get a prescription at a hospital and follow the doctor's schedule for dose increases and follow-up checks; don't buy from online shops that ship without a prescription, and don't get injections at a beauty salon
• Use sex-hormone drugs only when a doctor has prescribed them and you have regular follow-up checks; don't buy them online or raise the dose yourself
• If “feeling ugly” has reached the point of checking the mirror again and again and wanting to change it again and again, get a body-image assessment before talking about surgery
• In the first days after a loved one dies, don't be alone; if you have heart disease, high blood pressure or diabetes, keep taking your medicine, and call 120 (China's ambulance number) if your chest feels crushed
• In the week you are told a serious diagnosis, don't go alone to get the results, and put decisions other than treatment off until later
• After losing a job, first fix your daily routine, your medical insurance and your job-search rhythm, and don't stay home all day
• If a loved one died by suicide, an accident or a homicide, don't try to tough it out; reach out for professional help
• If you have no relatives and no friends, replace “the person who keeps watch on you” with three things: a neighbor who can get into your home, the community's visit list, and an emergency contact in your phone
• After a parent dies, tell the child the truth and let them attend the farewell
• Don't start by paying for grief counseling; first see whether your grief is truly stuck (the symptoms in )
• After separation or divorce, don't let your medical insurance lapse, and don't prop yourself up with alcohol
• In the first three months after a blow, put off every big decision that can't be undone
• Don't put off treatment that is due just to “wait until exams are over”; some windows follow bone age, not the exam calendar
• If a child is bullied, report it to the school the same day and ask for a written response; report fights, extortion and rumor-spreading straight to the police
• Get a child at least 2 hours outdoors every day, the only way to prevent myopia that is currently supported by a randomized trial
• Give no screens at ages 0 to 3, avoid them as far as possible at 3 to 6, and keep non-study use to no more than 1 hour a day for school-age children
• Treat myopia as damage that stays: the stronger the prescription, the more retinal detachment, macular disease and glaucoma later
• Read the report from the yearly school health checkup yourself, and take any abnormal item to a hospital the same year
• Have a child aged 12 to 18 screened for depression once, and don't treat the school's psychological assessment as a diagnosis
• Don't buy products or services that claim to “cure myopia” or “reduce the prescription”
• If poor eyesight is found, get a dilated eye exam at a hospital, then go back for follow-up at the intervals the doctor gives
• Get pit-and-fissure sealants once the permanent molars come in
• Someone who provides long-term care for a disabled person at home needs someone watching over their own health
• If you use a wheelchair long term, switch to a pressure-relieving cushion and check the sitting bones and tailbone once a day
• Don't buy treatments and devices that claim to “cure paralysis, blindness or deafness”
• Do rehabilitation at a proper facility with a rehabilitation medicine department, and let the therapist set the intensity: harder is not better (the evidence comes from stroke)
• If your hearing is getting worse, get hearing aids, and do it so you can hear, not to prevent dementia

Guides revised

• Is marriage worth it: breaking one muddled account into five clear ones：Filler cut, sentences shortened.
• Home emergency supplies: what to buy, where to keep it, how often to check：Filler cut, sentences shortened.
• When a stranger is in trouble on the road: walk away or stop：Filler cut, sentences shortened.
• How the body tells time, and why night shifts do harm：Filler cut, sentences shortened.

New

• When angry, don't vent by hitting a punching bag or running a lap; slow your body down first
• If something is weighing on you, you can write down your thoughts and feelings over several days, but don't expect it to cure anything
• When something happens at the scene, shoot the whole scene first, then the positions, and last the damage and injuries; don't delete the original photos and videos
• Treat the quality of a relationship as a health account: argue about the issue, not the person, and don't insult or sneer
• If you are bullied, insulted or obstructed at work over a long time, don't just endure it: write it down and keep evidence first, then take the complaint, police or arbitration route that fits

8 revised

• Drink tea more than 3 times a week
• Set a hard limit on short videos and aimless scrolling
• Use broad index funds instead of actively managed funds as the long-term core holding (the part of your money you hold for the long run)
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If you are lost or your vehicle breaks down in the Gobi, a desert or empty country, stay where you are or by the vehicle: report your position first, then get shade and keep warm, conserve water, and don't wander
• Give your email its own password, and don't reuse it on any website
• When your phone is lost, follow this order: report the SIM card lost, lock the phone remotely, change passwords, call the police, freeze your bank cards
• However tired or angry you are, never shake a baby

New

• Sell stocks that have lost money by a rule you set in advance, and don't count on averaging down to turn things around
• Don't trade stocks often, and trade even less when the market soars or crashes

§33 Living with a disability

How the body tells time, and why night shifts do harm

New

• If you have erection problems, get your cardiovascular health checked first; don't treat it as only a “private matter”
• Lose weight, quit smoking, and keep blood pressure and blood sugar under control; erectile function can improve along with them
• Don't try to quit by willpower alone; get medicine first, which more than doubles your chance of success
• Set a quit day and stop all at once on that day, rather than cutting down gradually first
• Go to a quit-smoking clinic, or call 12320 (China's public health hotline) to ask whether there is a quit-smoking service near you
• Consider e-cigarettes only if you really can't quit otherwise, and don't touch them if you don't already smoke
• If you drink every day and your hands shake and your heart races when you stop, don't try to quit cold turkey on your own
• To drink less, first count how much you drink in a week, then spend a few minutes talking to a doctor
• Keep naps to half an hour and no more than an hour; if you can only get through the day with a 1- or 2-hour sleep, find out why
• Catch up on sleep the night after a late night, rather than saving it for the weekend
• The longer you work night shifts, the higher your cardiovascular risk; if you can move to another position, do it sooner
• Treat procrastination as avoiding something unpleasant, not as not trying hard enough
• Put what you need within reach and move what you don't want to touch farther away; don't count on holding back in the moment
• Put your own money on the line to make yourself follow through, but first ask whether you would be willing to
• Count new habits in months, not in "21 days"
• If procrastination is already affecting your life, use self-help materials backed by randomized trials; you don't have to see a therapist
• Don't believe that “willpower is like a muscle that runs out after a while”
• Don't count on eating breakfast or 16:8 intermittent fasting to control your weight; choose meal times you can keep up long term
• If one eye is swollen, painful and red, lights have a rainbow ring around them, and there is headache with nausea or vomiting, go to the eye emergency room the same day
• If a child has severe eczema or an egg allergy, don't avoid peanuts: add them early as the doctor directs, but never give whole peanuts
• After studying, close the book and test yourself instead of rereading
• Spread the same study time over several days instead of learning it all at once
• Don't make highlighting, rereading and summarizing your main way to study
• Mix several kinds of problems when you practice, instead of doing twenty of one kind in a row
• Don't choose how to study by “I'm a visual learner, he's an auditory learner”
• For things you have to memorize, quiz yourself in the way you will use them later, instead of reciting them as written and calling it done
• Give no screens at ages 0 to 3, avoid them as far as possible at 3 to 6, and keep non-study use to no more than 1 hour a day for school-age children
• Treat myopia as damage that stays: the stronger the prescription, the more retinal detachment, macular disease and glaucoma later
• After a spinal cord injury, if there is a sudden severe headache and sweating, help the person sit up straight, loosen clothing, and call 120 (China's ambulance number) at the same time
• Treat the first ten years after a spinal cord injury leaves you disabled as a high-risk period for suicide, and don't write it off as something “cheer up” will fix
• Someone who provides long-term care for a disabled person at home needs someone watching over their own health
• If you use a wheelchair long term, switch to a pressure-relieving cushion and check the sitting bones and tailbone once a day
• Don't buy treatments and devices that claim to “cure paralysis, blindness or deafness”
• Do rehabilitation at a proper facility with a rehabilitation medicine department, and let the therapist set the intensity: harder is not better (the evidence comes from stroke)
• If your hearing is getting worse, get hearing aids, and do it so you can hear, not to prevent dementia

333 revised

• Wear a seatbelt in every seat, front and back
• Wear a helmet on a motorcycle or e-bike, and fasten the strap
• Install smoke alarms; if you burn coal or use gas for heating indoors in winter, add a carbon monoxide alarm
• Replace gas hoses and stoves when they expire, don't alter the pipes yourself, and feel free to turn away gas-company salespeople who come to your door
• Don't pick, buy or eat wild mushrooms; no “folk method” of telling safe ones apart works
• Don't push an e-bike into a stairwell or elevator, and don't charge it at home
• Check your blood pressure, and if it's high, take medicine to get it down to target
• After 35, if you are overweight, get a fasting blood glucose test once, and repeat it every 3 years even if it's normal
• Don't speed, don't drive after drinking, don't use your phone, and pull over to rest when you're sleepy
• Put children under 4 in a child safety seat in the car, not on your lap
• If there are small children at home, put window stops on windows and balcony doors; a window screen is not protection
• Keep children in sight near water, and wear a life jacket when boating or swimming in open water
• After 60, train balance and leg strength, and make the bathroom and stairs at home safer
• Get the hepatitis B blood panel (called the “two-and-a-half pairs” test in China) and use your vaccination record to decide whether you need a catch-up vaccine
• If you are stabbed by a nail or a splinter, or a wound gets dirt in it, have it treated that day and ask whether you need a tetanus shot
• Get the HPV vaccine for women, the earlier the better
• Women should start breast cancer screening at 40, with a mammogram every 2 years
• Women over 30 should get cervical cancer screening, with an HPV test first
• From 45 to 50, start colorectal cancer screening with a fecal immunochemical test for hidden blood in stool, or a colonoscopy
• People with cardiovascular disease and older adults should get a flu shot every year
• Get the shingles vaccine after 50
• Get the pneumococcal vaccine after 65
• Test for Helicobacter pylori, and eradicate it if positive
• Heavy smokers should get a low-dose chest CT every year
• If you are depressed or thinking about suicide, call 12356 (China's national mental-health hotline), and don't keep a stock of sleeping pills or pesticide at home
• Keep a fire extinguisher, fire blanket, escape smoke hood and first-aid kit at home, and check them once a year
• If you see visible blood in your urine, get checked once, even if it doesn't hurt and even if it's gone by the next day
• Use a condom for the whole of every sexual act, and don't share needles with anyone
• After any high-risk act, get tested for HIV once; the CDC tests for free and keeps the result confidential
• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Don't count on being “saved” as a safety net: after swallowing pesticide or breathing in gas, the emergency room can save a life, but not the lungs or the brain
• Don't gamble on “a few days lying down and I'll be fine” after a fall from a height: most people who reach a trauma ICU survive, but the cost is counted in years
• Don't sell a kidney for money thinking “one less kidney is nothing”: the remaining one does the work of two, and 86% of people who sold a kidney said their health got worse afterward
• Don't pick up, take apart or sell metal parts of unknown origin, and stay away from anything with a trefoil warning sign
• Quit smoking, and the earlier the better
• Don't smoke at home or in the car, and don't let guests smoke at home
• Don't drink sugary drinks, and switching to sugar-free doesn't solve it
• Don't chew betel nut
• Switch the table salt at home to low-sodium salt (potassium salt)
• Brush your teeth properly, clean between your teeth once a day, and replace missing teeth promptly
• Walk 7000–8000 steps a day, or build up 150–300 minutes of brisk walking a week
• Get your blood lipids tested regularly as an adult, every 2 to 5 years before 40 and every year from 40; if you have high blood pressure or high cholesterol, take your medicine regularly as prescribed and don't stop on your own
• Sleep about 7 hours a night on a regular schedule
• Play racket sports such as tennis, badminton and table tennis regularly
• Build up scattered bursts of effort such as climbing stairs and walking fast to 4 or 5 minutes a day
• Do 30–60 minutes of strength training a week
• Don't sit for long stretches; get up and move every so often
• Eat less processed meat (ham, bacon, sausage, luncheon meat)
• Drink less alcohol, or none
• Eat a small handful of nuts every day
• Swap some of your red meat for fish and poultry
• Swap some of your polished rice and white flour for whole grains
• Drink tea more than 3 times a week
• Drink 3 to 4 cups of coffee a day, keep total caffeine under 400 mg, and don't add sugar or milk foam
• Eat 5 servings (about 400 g) of fruit and vegetables a day
• Eat less ultra-processed food (potato chips, instant noodles, pastries, ready meals)
• Don't cook or heat with coal and firewood; switch to electricity or gas
• Let hot things cool before you drink them; don't drink scalding tea, soup or coffee
• Get out in the sun during the day; don't go all day without light
• Keep your BMI between 20 and 25, and lose weight if you are overweight
• Eat chili peppers more than 4 times a week
• Have 1 or 2 servings of milk or yogurt a day
• You don't have to give up eggs; up to one a day is fine
• Take a bath instead of only a shower, if you can
• Turn off nonessential notifications, and keep your phone out of sight while you work
• Get up at the same time every day, weekends included
• Sleep 7 to 8 hours a night, and don't treat 6 hours as enough
• Don't have caffeine after 2 p.m.
• Handle email and messages in batches at set times each day
• When doing work that needs continuous thought, block out even interruptions of a few seconds
• Do one thing at a time; don't reply to messages during a meeting
• Don't look at a glowing screen in the hour before bed; read a paper book or an e-ink screen instead
• Go to sleep on time; don't stay up for games, short videos or pornography
• Don't make big decisions or send important messages late at night
• If you're drowsy in the afternoon, nap for 10 minutes, not half an hour
• In an open-plan office, use earplugs or find a quiet room for work that needs memory
• Don't keep adding to your weekly work hours: past about 49 hours, each extra hour adds less and less
• When you notice you keep replaying the same upsetting thing, switch to something you do with your hands
• Treat thoughts like “things will definitely get worse” as a symptom, not as fact
• Cut back on relationships that drain you, and learn to turn down requests you don't want to take on
• When angry, walk away first, and treat the other person as weather, not as an enemy
• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• Treat police officers, doctors and bank tellers as people working by the rules of their jobs, not as roles: what moves things forward is paperwork and deadlines, not emotion
• Don't make “how other people are doing” your daily reading: set limits on, or turn off, apps that show your peers' posts
• When you feel that “everyone saw me embarrass myself,” cut that estimate in half
• Treat the thought “other people demand perfection from me” as a symptom, not as fact
• Turn "I intend to do this" into "at this time, in this place, when this happens, I do that"
• Write down your exit condition before you start
• When deciding whether to continue, look only at future effort and future return, not at how much you have already put in
• Estimate how long a task will take from how long similar tasks actually took, not from your plan
• Send an agenda before a meeting and don't hold meetings without one; stand up for the meeting if you can
• Cut the number of meetings, and don't hold a meeting for anything that can be settled in writing, asynchronously
• Break a big task into subtasks before estimating and starting
• Set a date for yourself on anything that has no outside deadline
• Use your own hourly wage to decide which chores to outsource
• Set a hard limit on short videos and aimless scrolling
• Skip TV and scrolling news; check the information you need at set times, all at once
• Spend a one-time effort learning keyboard shortcuts and automation in the software you use often
• Put commute time first when choosing where to live, and shorten your one-way commute
• Turn off all auto-renewals and renew by hand when a subscription expires
• Recalculate your phone and broadband plans once a year, downgrade what you don't use, and file a complaint if the carrier won't let you switch
• Don't buy lottery tickets
• Walk away when you see "high returns," "principal guaranteed" or "sure profit"
• Don't make only the minimum credit card payment, and don't take installments or consumer loans for purchases; if you must borrow, convert the interest into an annualized rate before comparing
• Don't tip streamers, don't top up games, and don't place orders on impulse
• Teach your child one sentence: anyone who tells you to use a parent's phone or read out a verification code is a scammer
• Turn down extended warranties on electronics
• Drink boiled tap water; don't subscribe year-round to bottled water for a dispenser or buy bottled water
• Don't borrow to invest, don't use leverage, and don't buy what you don't understand
• Use broad index funds instead of actively managed funds as the long-term core holding (the part of your money you hold for the long run)
• Among similar funds, prefer the one with lower fees
• Don't put all your money on one stock, one platform or one house
• Pay a gym per visit or on a short cycle, unless you have a record of steady attendance of a year or more
• Set a 24-hour cooling-off period for large nonessential purchases, and make good use of 7-day no-reason returns when shopping online
• Don't stock up because of "crossed-out prices" and big sales
• Buy pure protection insurance first, and treat "return" and "dividend" features as parts that aren't guaranteed
• Build an emergency fund of 3 to 6 months of living expenses first, and keep it where you can withdraw it at any time
• Before prepaying your mortgage, work through one comparison; don't go by feel
• Count bead bracelets, jade, luxury watches and designer toys by "money spent," not "money saved"
• Treat blind boxes, gacha pulls and other random sales as money that will not come back
• Don't take a multivitamin to live longer or prevent heart and blood vessel disease
• Don't take ordinary fish oil to prevent heart and blood vessel disease
• Don't take vitamin D to live longer if you aren't deficient in it
• Don't take antioxidant supplements (beta-carotene, vitamin E, vitamin A) to prevent cancer
• Don't count on glucosamine/chondroitin to treat knee osteoarthritis
• Don't rely on vitamin C to prevent colds
• Don't get a whole-body PET-CT or a “tumor marker package” when you have no symptoms
• Don't count on a fitness band or watch that tracks your activity to help you lose weight
• Don't pay a premium for organic food to be “healthier”
• Don't spend big on supplements, herbal tonic pastes or tonic products to “balance the body”
• Don't take probiotics long term when you have no gut problem
• Don't force yourself into cold showers to “boost immunity”
• Don't buy detox, colon cleanse, enzyme or alkaline water products
• Don't force yourself to drink to reach “8 glasses a day”
• Don't pay for fortune-telling, tarot or horoscopes to make decisions
• Don't buy blue-light glasses to “protect your eyesight,” and don't believe that “a few months facing a screen ruins your eyes,” but treat swollen, painful, red eyes as an emergency
• Don't treat giving blood as a health measure: there is no randomized trial behind “detox, lower blood fats, prevent heart attack,” and giving too often really does leave you short of iron
• Don't rely on a general checkup package to prevent disease; get the few screenings that have evidence for your age and sex
• Don't start uric-acid-lowering drugs just because a checkup found high uric acid when you've never had gout pain
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Don't cut out calcium to prevent kidney stones
• Don't buy crystals, bead bracelets or pixiu charms for “changing your luck,” “attracting wealth” or “nurturing” you
• Don't count on buying things to improve your mood or sense of identity
• Don't spend more on a home, car or social circle to “move up a notch among the people around you”
• Don't just send out resumes; use a systematic job search method: learn the techniques, set a target and get people to help
• Don't pay a deposit, don't hand over your ID, don't sign a “training loan”, don't join a pyramid scheme, don't borrow at loan-shark rates
• Cut housing and food to the minimum: rent a shared room by the month instead of by the day, and cook for yourself or use a subsidized meal canteen instead of delivery
• If you truly have nowhere to sleep, a 24-hour place is only an emergency fix for one night; go to a rescue station first
• Remember the hard rules against fraud: don't trust incoming calls, don't give out information, don't click links, double-check before any transfer; the seven most common scams all have this shape
• Don't treat a face on video or a voice on the phone as verification; hang up before any transfer and call back on an old number from your own contacts
• Don't touch the steering wheel after drinking, including electric bikes and "just moving the car", and don't lend your car to anyone who has been drinking or has no license
• Call the police and don't use your hands when a conflict starts; the one who strikes first makes it easy for the other side's hitting back to count as justified self-defense
• Treat thoughts like "take someone down with me" or "die together" as an emergency: leave the scene, hand your car keys and knife to someone else, and call 12356
• Don't curse, spread rumors or forward unchecked claims online; if you are cyberbullied, keep evidence first, then call the police
• Read the whole paper before you sign, don't sign for others, and don't sign a blank page
• Write a clear IOU when you lend money, and before you guarantee someone else's debt, think about whether you are willing to pay it for him
• If you are cheated in online shopping or a secondhand deal, complain to the platform first, then call the police, then work out whether a lawsuit is worth it
• Ask the price before home repair, vehicle inspection or renovation work begins, and watch the work from beside the worker
• Don't carry things for strangers across borders, and don't receive packages of unknown origin
• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• Don't forward disaster, epidemic or police-incident messages in group chats when you don't know if they are true, and don't edit photos or use AI to fake a scene
• Turn down any "part-time job" that asks you to receive money, withdraw cash or transfer funds with your own card, no matter how big the fee
• Don't withdraw money with a bank card you find, and contact the owner or hand to the police any phone or wallet you find; don't pocket it
• Don't throw anything out of a balcony or window, and that includes cigarette butts, garbage bags and bottles
• Don't secretly film other people, and don't install cameras in rental rooms, guesthouse rooms or hotel rooms
• Don't eat wild game, and don't buy, sell or keep protected animals as pets; don't dig up or trade wild orchids, cliff arborvitae or yew either
• Don't lend your ID card, don't use someone else's, and don't use another person's documents to register, open a card or buy a ticket
• Work out the bill before you hit someone: detention, paying money, a prison sentence
• Don't stage accidents or exaggerate losses to cheat on a claim: this is the crime of insurance fraud, and the people who testify for you, repair your car or assess your loss are convicted with you
• Don't sell your own organs and don't help anyone find a donor: a kidney that earns the seller just over 20,000 CNY is resold for 200,000 CNY, and the money is confiscated and a fine of 10 to 20 times the transaction amount is imposed
• Meet more people instead of fixating on one: whether two people click can't be predicted before they meet
• Stop once the other person has clearly refused; continuing to pester is a public security violation, not "sincerity"
• To tell whether someone is interested, look at behavior and not "signals": who initiates, who arranges, who follows up
• Whether a relationship is good depends mainly on how you feel in it, not on the other person's credentials
• To get closer, take turns answering a set of questions that go from light to deep; don't learn lines
• A long-distance relationship is no worse than living in the same city; the real hurdle is the first three months after moving in together
• Count the health benefits of marriage, but discount them because the data are observational
• Count the time cost as unpaid work, and agree on the division of labor before you register
• Get a premarital checkup, and a serious illness must be truthfully disclosed to the other person before registration
• Keep a separate account for "marrying for your elders," and don't mix it with your own
• Before you act, ask whether the vendor, platform or company would report it; if you are pursued, get a criminal defense lawyer right away
• Don't make or sell game cheats or assist tools, including AI assists that "only read the screen and never touch memory," and don't sell modified versions that add features to software like WeChat
• Hand over all account access when you leave, and don't delete databases, leave backdoors or change passwords to lock the system, even if the company owes you money
• Don't take source code, customer lists or technical documents when you leave, don't upload them to a personal cloud drive, and don't reuse them at your next employer
• Don't run your own programs on other people's computers, servers or cameras, and don't use company machines to mine cryptocurrency
• Don't test other people's systems without written authorization; "good intentions" and "reporting afterward" are not defenses
• Report vulnerabilities as the rules require, and before they are fixed don't publish the details, release exploit tools or hand them to anyone abroad
• Code written during work hours or with company resources belongs to the company; do your own open-source projects on your own time and equipment, with no company code mixed in
• When you build a product with GPL or other open-source code, open your source or change the license as the license requires, and don't assume "nobody will enforce it"
• When building an app, collect only the personal information the business needs, get a guardian's consent for children under 14, and write the privacy policy clearly
• Start a business only with money you can afford to lose; don't touch the family's savings or borrow to open
• Don't sign a personal guarantee on a company loan, and your spouse shouldn't sign along with you
• Don't be a nominal shareholder, and don't hold equity on someone else's behalf
• Sell first, build second: use presales and small orders to confirm people will buy before you put money into production
• Once the sample is made, run it through a mass-production checklist before you start production
• Images on products, packaging, tags and promotional pictures must be made by you or bought under a license; changing the color or adding an icon doesn't make it "altered"
• At your post, follow procedure, and before doing a favor outside procedure, think through who bears responsibility
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If a mouth suddenly droops, one arm goes weak or speech is slurred, call 120 (China's ambulance number) at once; don't wait and don't drive there yourself
• If there is sudden spinning dizziness with unsteadiness, double vision, blackout in one eye, or the fingertip can't reach your own nose, treat it as a stroke and call 120 (China's ambulance number)
• If one eye suddenly goes dark like a curtain being pulled down, treat it as a stroke and go to the emergency room the same day, even if it clears up in a few minutes
• If there is pressing pain, tightness or squeezing in the chest lasting more than 15 minutes without easing, call 120 (China's ambulance number); don't tough it out and don't drive yourself
• If there is a sudden tearing pain that moves from the chest to the back and down to the lower back, call 120 (China's ambulance number) and say clearly that it "feels like tearing"
• If there is a sudden "worst headache of your life" that reaches its peak within an hour, go to the emergency room for a head CT right away
• If an older person, two or three weeks to a few months after bumping their head, becomes unsteady on their feet, slow, sleepy or weak on one side, get a head CT
• If one leg suddenly swells, feels tight and hurts when pressed, get medical care soon; if there is also sudden shortness of breath or chest pain, call 120 (China's ambulance number) at once
• For heavy bleeding, first press hard on the wound with your hand; if you can't stop it on a limb, put on a tourniquet; and call 120 (China's ambulance number) at the same time
• If a dog or cat bites you or breaks the skin, rinse with soap and running water, alternating, for 15 minutes, and get the vaccine the same day
• After a scald, run cool water over it right away for 20 minutes, and don't put on toothpaste or soy sauce
• If a rash suddenly spreads over the body with trouble breathing or dizziness, treat it as anaphylaxis, and call 120 (China's ambulance number) at once and say so clearly
• If someone has a seizure and falls, clear the area around them, lay them on their side, time it by the clock, and put nothing in their mouth
• If a person with diabetes suddenly shakes, breaks into a cold sweat or slurs speech, first give 15 grams of sugar and recheck after 15 minutes
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If a carbon monoxide alarm sounds, or a whole room of people get headaches and nausea at once, get outside first, then make the call
• If someone swallows cleaner, pesticide or medicine, don't make them vomit; take the bottle and go for care at once. If it splashes into the eyes or on the skin, rinse with plenty of water for at least 15 minutes
• If acid, alkali or another chemical splashes on you, take off the contaminated clothing at once, rinse with plenty of running water, hold the eyelids open when rinsing the eyes, and don't leave until you have rinsed long enough
• In high heat, if there is dizziness, nausea, no sweating or confusion, move to a cool place at once, take off clothing and pour water to cool down, don't give water to someone who isn't fully conscious, and call 120 (China's ambulance number)
• A person with heat illness who is awake should drink cool light salt water or a sports drink in small amounts, often; don't gulp, and avoid alcohol and high-sugar drinks
• In a fire, crawl low, feel the door before opening it, don't open it if it is hot, take the stairs and not the elevator, and once you are out don't go back
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• If you are lost or your vehicle breaks down in the Gobi, a desert or empty country, stay where you are or by the vehicle: report your position first, then get shade and keep warm, conserve water, and don't wander
• Shivering, slurred speech and an unsteady walk mean hypothermia: change out of wet clothes, wrap the person up, warm the trunk first, and give hot sweet drinks but no alcohol
• If bitten by a snake, sit down and keep still, take off rings and watches, get to a hospital quickly for antivenom, and don't cut, suck or tie tightly
• In an earthquake, first see what kind of building you are in: in a building built to seismic standards take cover in place, and in an old building that could collapse, go out if the door is a few steps away
• If you meet a bear, wild boar or a pack of wild dogs, don't run; turn sideways and back away slowly
• If caught by a thunderstorm outdoors, get into a hard-topped vehicle or building, and stay away from ridges, lone trees, open water and metal
• Going up to a high plateau, climb by sleeping altitude (how high you sleep that night) and go down if symptoms get worse; don't tough it out
• If a tick is attached, pull it out steadily with pointed tweezers close to the skin, and don't put on oil or burn it
• Boil all water from the wild before drinking; a rolling boil for one minute is enough, and you don't need to boil longer at high altitude
• If a stranger demands money from you in the wild, give it to him, don't fight, note his features, and report to the police after you get away
• If you come upon a group fighting, back away and leave; don't step in to break it up, don't stand and watch, and don't pick up anything from the ground; if you report it, move to a safe distance and dial 110 (China's police number)
• If you may have been exposed to HIV, get the preventive medicine within 72 hours, the sooner the better
• If a knife, steel rod or glass is stuck in the body, press around the object to stop bleeding and do not pull it out
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself
• Turn on two-step verification for your email, payment and social accounts, and prefer a confirmation pop-up on your phone over a text-message code
• Give your email its own password, and don't reuse it on any website
• Set a lock-screen passcode on your phone and a PIN on the SIM card
• When your phone is lost, follow this order: report the SIM card lost, lock the phone remotely, change passwords, call the police, freeze your bank cards
• Check your accounts' signed-in devices and authorized apps every so often, and remove the ones you don't use
• Before signing a lease, check the ownership certificate and any mortgage, and pay everything by transfer with the purpose noted
• Take your medicine as prescribed to the end of the course, and don't stop just because you feel better
• Go for follow-up checks at the interval your doctor sets, and record every result in the same notebook
• Don't stop proper treatment to try folk remedies or health supplements
• Get an eye-ground exam once when diabetes is diagnosed, then at the interval your doctor sets, and have your feet checked every year
• If you have had a kidney stone, drink 2.5–3 liters of water a day and keep salt to no more than 6 grams
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• While an older person is still clear-headed, name their future guardian in writing
• Keep an older person's money in a separate account, and set a rule that large payments need two people to confirm
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• Stay away from any "invest for your retirement" scheme that asks an older person to pay first: cards, beds, retirement apartments, travel-retirement and senior products are all the same illegal fund-raising
• If someone at home is bedridden for a long time, treat pressure sores as the number one enemy: use a powered air mattress, turn them on a schedule, and check the bony spots every day
• Count the time cost of raising a child by whose time gets taken up, not by how tiring it is
• Count the money in three stretches: ages 0 to 3, compulsory education, and after compulsory education
• Keep a separate account for having a child for your elders, for the marriage, and for old-age support
• Much of the damage from dust, noise and toxic chemicals is irreversible (for example pneumoconiosis and noise-induced deafness): the employer must supply protective gear, and you can refuse work with no protective measures
• Don't believe "get to your workstation and it counts as a work injury": if you suddenly feel unwell, call 120 (China's ambulance number) first, don't rush to clock in
• Put a baby to sleep on the back, on a firm flat surface, in the same room but not the same bed, with nothing soft in the bed
• Give the first hepatitis B vaccine shot within 24 hours of birth
• Get all the vaccines in the national immunization program on schedule, which are free all the way, and if you miss one, only catch up on the doses not yet given
• Feed only breast milk for the first 6 months, not even water, start solid foods at 6 months and keep breastfeeding
• Mix formula with water above 70 ℃, let it cool before feeding, and throw away what is left
• Do not give honey to a child under 1 year old
• Be sure the vitamin K shot is given at birth
• If a baby under 3 months has a temperature of 38 ℃, go straight to the hospital and don't watch at home
• However tired or angry you are, never shake a baby
• For diapers, don't go by brand; look at three things: the fit, how often you change, and whether the product has been named in a spot-check report
• For big items, think in the order borrow, buy used, buy new, and don't buy everything at once
• Buy insurance that covers medical care and medical evacuation abroad, not just flight-delay insurance
• Treat any "high-paying job abroad" as a scam: people lured into running telecom fraud are also restricted from leaving China after they return
• Photograph your passport, visa and ID and keep a copy in the cloud; if you lose them, call the police first and then apply for a replacement travel document
• Before driving yourself abroad, confirm whether the place accepts a Chinese driver's license; most "international driving permits" sold online are worthless paper
• Before leaving the country, send your itinerary, lodging and travel companions to a family member and agree how often to check in
• Before going into a KTV, bar or escape room, look at where the safety exits are, and if they are locked or blocked, go somewhere else
• Ask for the price list before you order: entertainment venues must post clear prices, and you should not accept "play first, settle up later"
• If someone in the venue hands you "something," leave right away: harboring and supplying are not "helping a friend"
• Don't eat candy or snacks from strangers, don't drink a drink that has been out of your sight, and don't accept vape cartridges that others hand you
• When your mood is bad enough to be depression, go for a walk or a run: the antidepressant effect size (how big the effect is) grows with intensity
• When anxiety gets in the way of life, a mindfulness-based stress reduction course works no worse than the commonly used anti-anxiety drug
• To settle down on the spot, use 5 minutes of "cyclic sighing": two breaths in, then a long breath out
• Treat meeting people regularly as a health expense, and don't look for people only when your mood is low
• Count nearby green space when choosing where to live, but don't expect "going to the park more" to extend your life
• Count schooling in the death-rate ledger too: each extra year of education lowers adult death risk by about 1.9%
• Turn “study or work” into a calculation: compare the three years of pay you'd earn by working now against the yearly income gap you'd gain over the next several decades by staying in school
• Start from the baseline: the global average private return to one more year of education (the part that lands in your own income) is about 9% a year
• When choosing a skill, give priority to work that needs your hands and on-the-spot judgment; it is the hardest to automate away
• For the same money and time, pick a short program that leads straight to a job
• After every visit, keep your own copy of your medical records, test reports and imaging
• For a serious or urgent injury or illness, go straight to the emergency triage desk and don't line up at the registration window
• If someone dies at home or elsewhere, first tell a natural death from an unnatural one: for an accident, an unknown cause, or someone found after living alone, call the police right away and don't touch the body or the scene
• You are responsible for what users post: set up review, a reporting entry, and when you find illegal content, stop it from spreading right away and report it
• When choosing a server, first ask whether you can live with downtime, then whether anyone will maintain it, and only last compare prices
• Start taking 0.4 mg of folic acid every day when you begin trying to get pregnant, and keep taking it until the end of the first 3 months of pregnancy
• At the first prenatal checkup, get tested for HIV, syphilis and hepatitis B; even if HIV is found, there is free blocking of transmission to the baby
• Don't smoke a single cigarette or drink a single sip during pregnancy, and don't let anyone at home smoke indoors
• If you have risk factors for preeclampsia, start one low-dose aspirin a day after 12 weeks of pregnancy, as your doctor directs
• At 24 weeks of pregnancy or later, get screened once for gestational diabetes, and don't begrudge the sugar drink
• Memorize this “go to the hospital now” list; it applies throughout pregnancy and for a year after birth
• If your water breaks, lie down where you are, raise your hips, and call 120 (China's ambulance number); don't walk around or take a bath
• If you want labor pain relief, say so directly; it does not raise the risk of cesarean section
• Don't ask for a cesarean section without a medical reason, and don't have surgery just to pick a date
• Don't refuse the newborn heel-prick blood screening and hearing screening
• Don't skip the checkup at 42 days postpartum; in some places it is also a screening for postpartum depression
• Don't use extreme dieting, fasting or induced vomiting to control your weight; if you want to lose weight, do it on the exercise side
• Before an injection, thread lift or surgery, check two things: that the facility's license lists “medical cosmetology”, and that the person doing it is the attending physician
• Avoid the bridge of the nose, the area between the eyebrows and the forehead for facial fillers, and above all don't go to an unlicensed injector to save money
• Don't buy diet pills, slimming coffee, slimming candy or enzyme plums (plums said to be soaked in enzymes) that promise fast weight loss
• Don't use anabolic steroids (“muscle-building injections,” “oral pills”) to build muscle
• If you want a weight-loss drug or a weight-loss injection such as semaglutide, get a prescription at a hospital and follow the doctor's schedule for dose increases and follow-up checks; don't buy from online shops that ship without a prescription, and don't get injections at a beauty salon
• Use sex-hormone drugs only when a doctor has prescribed them and you have regular follow-up checks; don't buy them online or raise the dose yourself
• If “feeling ugly” has reached the point of checking the mirror again and again and wanting to change it again and again, get a body-image assessment before talking about surgery
• In the first days after a loved one dies, don't be alone; if you have heart disease, high blood pressure or diabetes, keep taking your medicine, and call 120 (China's ambulance number) if your chest feels crushed
• In the week you are told a serious diagnosis, don't go alone to get the results, and put decisions other than treatment off until later
• After losing a job, first fix your daily routine, your medical insurance and your job-search rhythm, and don't stay home all day
• If a loved one died by suicide, an accident or a homicide, don't try to tough it out; reach out for professional help
• In the first six months after a spouse dies, put meals, sleep, chronic-illness medicine and follow-up checks in the hands of one particular person who keeps watch
• If you have no relatives and no friends, replace “the person who keeps watch on you” with three things: a neighbor who can get into your home, the community's visit list, and an emergency contact in your phone
• After a parent dies, tell the child the truth and let them attend the farewell
• If grief is still stuck after six months and you can't get through your days, register at a psychiatry or clinical psychology department
• Don't start by paying for grief counseling; first see whether your grief is truly stuck (the symptoms in )
• After separation or divorce, don't let your medical insurance lapse, and don't prop yourself up with alcohol
• To have someone talk with you, call 12356 (China's national mental-health hotline); minors and teenagers call 12355 (national youth integrated service platform); to see a doctor, register at a psychological clinic
• In the first three months after a blow, put off every big decision that can't be undone
• Take a child to the hospital right away for sudden, worsening severe pain; don't make him hold out until school ends
• Don't put off treatment that is due just to “wait until exams are over”; some windows follow bone age, not the exam calendar
• If a child is bullied, report it to the school the same day and ask for a written response; report fights, extortion and rumor-spreading straight to the police
• Get a child at least 2 hours outdoors every day, the only way to prevent myopia that is currently supported by a randomized trial
• Read the report from the yearly school health checkup yourself, and take any abnormal item to a hospital the same year
• Have a child aged 12 to 18 screened for depression once, and don't treat the school's psychological assessment as a diagnosis
• Don't buy products or services that claim to “cure myopia” or “reduce the prescription”
• If poor eyesight is found, get a dilated eye exam at a hospital, then go back for follow-up at the intervals the doctor gives
• Get pit-and-fissure sealants once the permanent molars come in

Guides revised

• Is marriage worth it: breaking one muddled account into five clear ones：Rewritten sentence by sentence, one point per sentence.
• Home emergency supplies: what to buy, where to keep it, how often to check：Rewritten sentence by sentence, one point per sentence.
• When a stranger is in trouble on the road: walk away or stop：Rewritten sentence by sentence, one point per sentence.

305 revised

• Wear a seatbelt in every seat, front and back
• Wear a helmet on a motorcycle or e-bike, and fasten the strap
• Install smoke alarms; if you burn coal or use gas for heating indoors in winter, add a carbon monoxide alarm
• Replace gas hoses and stoves when they expire, don't alter the pipes yourself, and feel free to turn away gas-company salespeople who come to your door
• Don't pick, buy or eat wild mushrooms; no “folk method” of telling safe ones apart works
• Don't push an e-bike into a stairwell or elevator, and don't charge it at home
• Check your blood pressure, and if it's high, take medicine to get it down to target
• After 35, if you are overweight, get a fasting blood glucose test once, and repeat it every 3 years even if it's normal
• Don't speed, don't drive after drinking, don't use your phone, and pull over to rest when you're sleepy
• Put children under 4 in a child safety seat in the car, not on your lap
• If there are small children at home, put window stops on windows and balcony doors; a window screen is not protection
• Keep children in sight near water, and wear a life jacket when boating or swimming in open water
• After 60, train balance and leg strength, and make the bathroom and stairs at home safer
• Get the hepatitis B blood panel (called the “two-and-a-half pairs” test in China) and use your vaccination record to decide whether you need a catch-up vaccine
• Get the HPV vaccine for women, the earlier the better
• Women should start breast cancer screening at 40, with a mammogram every 2 years
• Women over 30 should get cervical cancer screening, with an HPV test first
• From 45 to 50, start colorectal cancer screening with a fecal immunochemical test for hidden blood in stool, or a colonoscopy
• People with cardiovascular disease and older adults should get a flu shot every year
• Get the shingles vaccine after 50
• Get the pneumococcal vaccine after 65
• Test for Helicobacter pylori, and eradicate it if positive
• Heavy smokers should get a low-dose chest CT every year
• If you are depressed or thinking about suicide, call 12356 (China's national mental-health hotline), and don't keep a stock of sleeping pills or pesticide at home
• Keep a fire extinguisher, fire blanket, escape smoke hood and first-aid kit at home, and check them once a year
• If you see visible blood in your urine, get checked once, even if it doesn't hurt and even if it's gone by the next day
• Use a condom for the whole of every sexual act, and don't share needles with anyone
• After any high-risk act, get tested for HIV once; the CDC tests for free and keeps the result confidential
• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Don't count on being “saved” as a safety net: after swallowing pesticide or breathing in gas, the emergency room can save a life, but not the lungs or the brain
• Don't gamble on “a few days lying down and I'll be fine” after a fall from a height: most people who reach a trauma ICU survive, but the cost is counted in years
• Don't sell a kidney for money thinking “one less kidney is nothing”: the remaining one does the work of two, and 86% of people who sold a kidney said their health got worse afterward
• Don't pick up, take apart or sell metal parts of unknown origin, and stay away from anything with a trefoil warning sign
• Quit smoking, and the earlier the better
• Don't smoke at home or in the car, and don't let guests smoke at home
• Don't drink sugary drinks, and switching to sugar-free doesn't solve it
• Don't chew betel nut
• Switch the table salt at home to low-sodium salt (potassium salt)
• Brush your teeth properly, clean between your teeth once a day, and replace missing teeth promptly
• Walk 7000–8000 steps a day, or build up 150–300 minutes of brisk walking a week
• Get your blood lipids tested regularly as an adult, every 2 to 5 years before 40 and every year from 40; if you have high blood pressure or high cholesterol, take your medicine regularly as prescribed and don't stop on your own
• Sleep about 7 hours a night on a regular schedule
• Play racket sports such as tennis, badminton and table tennis regularly
• Build up scattered bursts of effort such as climbing stairs and walking fast to 4 or 5 minutes a day
• Do 30–60 minutes of strength training a week
• Don't sit for long stretches; get up and move every so often
• Eat less processed meat (ham, bacon, sausage, luncheon meat)
• Drink less alcohol, or none
• Eat a small handful of nuts every day
• Swap some of your red meat for fish and poultry
• Swap some of your polished rice and white flour for whole grains
• Drink tea more than 3 times a week
• Drink 3 to 4 cups of coffee a day, keep total caffeine under 400 mg, and don't add sugar or milk foam
• Eat 5 servings (about 400 g) of fruit and vegetables a day
• Eat less ultra-processed food (potato chips, instant noodles, pastries, ready meals)
• Don't cook or heat with coal and firewood; switch to electricity or gas
• Let hot things cool before you drink them; don't drink scalding tea, soup or coffee
• Get out in the sun during the day; don't go all day without light
• Keep your BMI between 20 and 25, and lose weight if you are overweight
• Eat chili peppers more than 4 times a week
• Have 1 or 2 servings of milk or yogurt a day
• You don't have to give up eggs; up to one a day is fine
• Take a bath instead of only a shower, if you can
• Turn off nonessential notifications, and keep your phone out of sight while you work
• Get up at the same time every day, weekends included
• Sleep 7 to 8 hours a night, and don't treat 6 hours as enough
• Don't have caffeine after 2 p.m.
• Handle email and messages in batches at set times each day
• When doing work that needs continuous thought, block out even interruptions of a few seconds
• Do one thing at a time; don't reply to messages during a meeting
• Don't look at a glowing screen in the hour before bed; read a paper book or an e-ink screen instead
• Go to sleep on time; don't stay up for games, short videos or pornography
• Don't make big decisions or send important messages late at night
• If you're drowsy in the afternoon, nap for 10 minutes, not half an hour
• In an open-plan office, use earplugs or find a quiet room for work that needs memory
• Don't keep adding to your weekly work hours: past about 49 hours, each extra hour adds less and less
• When you notice you keep replaying the same upsetting thing, switch to something you do with your hands
• Treat thoughts like “things will definitely get worse” as a symptom, not as fact
• Cut back on relationships that drain you, and learn to turn down requests you don't want to take on
• When angry, walk away first, and treat the other person as weather, not as an enemy
• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• Treat police officers, doctors and bank tellers as people working by the rules of their jobs, not as roles: what moves things forward is paperwork and deadlines, not emotion
• Don't make “how other people are doing” your daily reading: set limits on, or turn off, apps that show your peers' posts
• When you feel that “everyone saw me embarrass myself,” cut that estimate in half
• Treat the thought “other people demand perfection from me” as a symptom, not as fact
• Turn "I intend to do this" into "at this time, in this place, when this happens, I do that"
• Write down your exit condition before you start
• When deciding whether to continue, look only at future effort and future return, not at how much you have already put in
• Estimate how long a task will take from how long similar tasks actually took, not from your plan
• Send an agenda before a meeting and don't hold meetings without one; stand up for the meeting if you can
• Cut the number of meetings, and don't hold a meeting for anything that can be settled in writing, asynchronously
• Break a big task into subtasks before estimating and starting
• Set a date for yourself on anything that has no outside deadline
• Use your own hourly wage to decide which chores to outsource
• Set a hard limit on short videos and aimless scrolling
• Spend a one-time effort learning keyboard shortcuts and automation in the software you use often
• Put commute time first when choosing where to live, and shorten your one-way commute
• Don't buy lottery tickets
• Walk away when you see "high returns," "principal guaranteed" or "sure profit"
• Don't make only the minimum credit card payment, and don't take installments or consumer loans for purchases; if you must borrow, convert the interest into an annualized rate before comparing
• Don't tip streamers, don't top up games, and don't place orders on impulse
• Teach your child one sentence: anyone who tells you to use a parent's phone or read out a verification code is a scammer
• Turn down extended warranties on electronics
• Drink boiled tap water; don't subscribe year-round to bottled water for a dispenser or buy bottled water
• Don't borrow to invest, don't use leverage, and don't buy what you don't understand
• Use broad index funds instead of actively managed funds as the long-term core holding (the part of your money you hold for the long run)
• Among similar funds, prefer the one with lower fees
• Don't put all your money on one stock, one platform or one house
• Don't stock up because of "crossed-out prices" and big sales
• Buy pure protection insurance first, and treat "return" and "dividend" features as parts that aren't guaranteed
• Build an emergency fund of 3 to 6 months of living expenses first, and keep it where you can withdraw it at any time
• Before prepaying your mortgage, work through one comparison; don't go by feel
• Count bead bracelets, jade, luxury watches and designer toys by "money spent," not "money saved"
• Treat blind boxes, gacha pulls and other random sales as money that will not come back
• Don't take a multivitamin to live longer or prevent heart and blood vessel disease
• Don't take ordinary fish oil to prevent heart and blood vessel disease
• Don't take vitamin D to live longer if you aren't deficient in it
• Don't take antioxidant supplements (beta-carotene, vitamin E, vitamin A) to prevent cancer
• Don't count on glucosamine/chondroitin to treat knee osteoarthritis
• Don't rely on vitamin C to prevent colds
• Don't get a whole-body PET-CT or a “tumor marker package” when you have no symptoms
• Don't count on a fitness band or watch that tracks your activity to help you lose weight
• Don't pay a premium for organic food to be “healthier”
• Don't spend big on supplements, herbal tonic pastes or tonic products to “balance the body”
• Don't take probiotics long term when you have no gut problem
• Don't force yourself into cold showers to “boost immunity”
• Don't buy detox, colon cleanse, enzyme or alkaline water products
• Don't force yourself to drink to reach “8 glasses a day”
• Don't pay for fortune-telling, tarot or horoscopes to make decisions
• Don't buy blue-light glasses to “protect your eyesight,” and don't believe that “a few months facing a screen ruins your eyes,” but treat swollen, painful, red eyes as an emergency
• Don't treat giving blood as a health measure: there is no randomized trial behind “detox, lower blood fats, prevent heart attack,” and giving too often really does leave you short of iron
• Don't rely on a general checkup package to prevent disease; get the few screenings that have evidence for your age and sex
• Don't start uric-acid-lowering drugs just because a checkup found high uric acid when you've never had gout pain
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Don't cut out calcium to prevent kidney stones
• Don't buy crystals, bead bracelets or pixiu charms for “changing your luck,” “attracting wealth” or “nurturing” you
• Don't count on buying things to improve your mood or sense of identity
• Don't spend more on a home, car or social circle to “move up a notch among the people around you”
• Don't just send out resumes; use a systematic job search method: learn the techniques, set a target and get people to help
• Don't pay a deposit, don't hand over your ID, don't sign a “training loan”, don't join a pyramid scheme, don't borrow at loan-shark rates
• Cut housing and food to the minimum: rent a shared room by the month instead of by the day, and cook for yourself or use a subsidized meal canteen instead of delivery
• If you truly have nowhere to sleep, a 24-hour place is only an emergency fix for one night; go to a rescue station first
• Don't treat a face on video or a voice on the phone as verification; hang up before any transfer and call back on an old number from your own contacts
• Don't touch the steering wheel after drinking, including electric bikes and "just moving the car", and don't lend your car to anyone who has been drinking or has no license
• Call the police and don't use your hands when a conflict starts; the one who strikes first makes it easy for the other side's hitting back to count as justified self-defense
• Treat thoughts like "take someone down with me" or "die together" as an emergency: leave the scene, hand your car keys and knife to someone else, and call 12356
• Don't curse, spread rumors or forward unchecked claims online; if you are cyberbullied, keep evidence first, then call the police
• Read the whole paper before you sign, don't sign for others, and don't sign a blank page
• Write a clear IOU when you lend money, and before you guarantee someone else's debt, think about whether you are willing to pay it for him
• If you are cheated in online shopping or a secondhand deal, complain to the platform first, then call the police, then work out whether a lawsuit is worth it
• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• Don't forward disaster, epidemic or police-incident messages in group chats when you don't know if they are true, and don't edit photos or use AI to fake a scene
• Turn down any "part-time job" that asks you to receive money, withdraw cash or transfer funds with your own card, no matter how big the fee
• Don't withdraw money with a bank card you find, and contact the owner or hand to the police any phone or wallet you find; don't pocket it
• Don't throw anything out of a balcony or window, and that includes cigarette butts, garbage bags and bottles
• Don't secretly film other people, and don't install cameras in rental rooms, guesthouse rooms or hotel rooms
• Don't eat wild game, and don't buy, sell or keep protected animals as pets; don't dig up or trade wild orchids, cliff arborvitae or yew either
• Don't lend your ID card, don't use someone else's, and don't use another person's documents to register, open a card or buy a ticket
• Work out the bill before you hit someone: detention, paying money, a prison sentence
• Don't stage accidents or exaggerate losses to cheat on a claim: this is the crime of insurance fraud, and the people who testify for you, repair your car or assess your loss are convicted with you
• Don't sell your own organs and don't help anyone find a donor: a kidney that earns the seller just over 20,000 CNY is resold for 200,000 CNY, and the money is confiscated and a fine of 10 to 20 times the transaction amount is imposed
• Meet more people instead of fixating on one: whether two people click can't be predicted before they meet
• Stop once the other person has clearly refused; continuing to pester is a public security violation, not "sincerity"
• To tell whether someone is interested, look at behavior and not "signals": who initiates, who arranges, who follows up
• Whether a relationship is good depends mainly on how you feel in it, not on the other person's credentials
• To get closer, take turns answering a set of questions that go from light to deep; don't learn lines
• A long-distance relationship is no worse than living in the same city; the real hurdle is the first three months after moving in together
• Count the health benefits of marriage, but discount them because the data are observational
• Count the time cost as unpaid work, and agree on the division of labor before you register
• Get a premarital checkup, and a serious illness must be truthfully disclosed to the other person before registration
• Before you act, ask whether the vendor, platform or company would report it; if you are pursued, get a criminal defense lawyer right away
• Don't make or sell game cheats or assist tools, including AI assists that "only read the screen and never touch memory," and don't sell modified versions that add features to software like WeChat
• Hand over all account access when you leave, and don't delete databases, leave backdoors or change passwords to lock the system, even if the company owes you money
• Don't take source code, customer lists or technical documents when you leave, don't upload them to a personal cloud drive, and don't reuse them at your next employer
• Don't run your own programs on other people's computers, servers or cameras, and don't use company machines to mine cryptocurrency
• Don't test other people's systems without written authorization; "good intentions" and "reporting afterward" are not defenses
• Report vulnerabilities as the rules require, and before they are fixed don't publish the details, release exploit tools or hand them to anyone abroad
• Code written during work hours or with company resources belongs to the company; do your own open-source projects on your own time and equipment, with no company code mixed in
• When you build a product with GPL or other open-source code, open your source or change the license as the license requires, and don't assume "nobody will enforce it"
• When building an app, collect only the personal information the business needs, get a guardian's consent for children under 14, and write the privacy policy clearly
• Start a business only with money you can afford to lose; don't touch the family's savings or borrow to open
• Don't sign a personal guarantee on a company loan, and your spouse shouldn't sign along with you
• Don't be a nominal shareholder, and don't hold equity on someone else's behalf
• Sell first, build second: use presales and small orders to confirm people will buy before you put money into production
• Once the sample is made, run it through a mass-production checklist before you start production
• Images on products, packaging, tags and promotional pictures must be made by you or bought under a license; changing the color or adding an icon doesn't make it "altered"
• At your post, follow procedure, and before doing a favor outside procedure, think through who bears responsibility
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If a mouth suddenly droops, one arm goes weak or speech is slurred, call 120 (China's ambulance number) at once; don't wait and don't drive there yourself
• If there is sudden spinning dizziness with unsteadiness, double vision, blackout in one eye, or the fingertip can't reach your own nose, treat it as a stroke and call 120 (China's ambulance number)
• If one eye suddenly goes dark like a curtain being pulled down, treat it as a stroke and go to the emergency room the same day, even if it clears up in a few minutes
• If there is pressing pain, tightness or squeezing in the chest lasting more than 15 minutes without easing, call 120 (China's ambulance number); don't tough it out and don't drive yourself
• If there is a sudden tearing pain that moves from the chest to the back and down to the lower back, call 120 (China's ambulance number) and say clearly that it "feels like tearing"
• If there is a sudden "worst headache of your life" that reaches its peak within an hour, go to the emergency room for a head CT right away
• If an older person, two or three weeks to a few months after bumping their head, becomes unsteady on their feet, slow, sleepy or weak on one side, get a head CT
• If one leg suddenly swells, feels tight and hurts when pressed, get medical care soon; if there is also sudden shortness of breath or chest pain, call 120 (China's ambulance number) at once
• For heavy bleeding, first press hard on the wound with your hand; if you can't stop it on a limb, put on a tourniquet; and call 120 (China's ambulance number) at the same time
• If a dog or cat bites you or breaks the skin, rinse with soap and running water, alternating, for 15 minutes, and get the vaccine the same day
• After a scald, run cool water over it right away for 20 minutes, and don't put on toothpaste or soy sauce
• If a rash suddenly spreads over the body with trouble breathing or dizziness, treat it as anaphylaxis, and call 120 (China's ambulance number) at once and say so clearly
• If someone has a seizure and falls, clear the area around them, lay them on their side, time it by the clock, and put nothing in their mouth
• If a person with diabetes suddenly shakes, breaks into a cold sweat or slurs speech, first give 15 grams of sugar and recheck after 15 minutes
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If someone swallows cleaner, pesticide or medicine, don't make them vomit; take the bottle and go for care at once. If it splashes into the eyes or on the skin, rinse with plenty of water for at least 15 minutes
• If acid, alkali or another chemical splashes on you, take off the contaminated clothing at once, rinse with plenty of running water, hold the eyelids open when rinsing the eyes, and don't leave until you have rinsed long enough
• In high heat, if there is dizziness, nausea, no sweating or confusion, move to a cool place at once, take off clothing and pour water to cool down, don't give water to someone who isn't fully conscious, and call 120 (China's ambulance number)
• A person with heat illness who is awake should drink cool light salt water or a sports drink in small amounts, often; don't gulp, and avoid alcohol and high-sugar drinks
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If you are lost or your vehicle breaks down in the Gobi, a desert or empty country, stay where you are or by the vehicle: report your position first, then get shade and keep warm, conserve water, and don't wander
• Shivering, slurred speech and an unsteady walk mean hypothermia: change out of wet clothes, wrap the person up, warm the trunk first, and give hot sweet drinks but no alcohol
• In an earthquake, first see what kind of building you are in: in a building built to seismic standards take cover in place, and in an old building that could collapse, go out if the door is a few steps away
• If you meet a bear, wild boar or a pack of wild dogs, don't run; turn sideways and back away slowly
• Going up to a high plateau, climb by sleeping altitude (how high you sleep that night) and go down if symptoms get worse; don't tough it out
• If a tick is attached, pull it out steadily with pointed tweezers close to the skin, and don't put on oil or burn it
• Boil all water from the wild before drinking; a rolling boil for one minute is enough, and you don't need to boil longer at high altitude
• If you come upon a group fighting, back away and leave; don't step in to break it up, don't stand and watch, and don't pick up anything from the ground; if you report it, move to a safe distance and dial 110 (China's police number)
• If you may have been exposed to HIV, get the preventive medicine within 72 hours, the sooner the better
• If a knife, steel rod or glass is stuck in the body, press around the object to stop bleeding and do not pull it out
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself
• Turn on two-step verification for your email, payment and social accounts, and prefer a confirmation pop-up on your phone over a text-message code
• Give your email its own password, and don't reuse it on any website
• Set a lock-screen passcode on your phone and a PIN on the SIM card
• When your phone is lost, follow this order: report the SIM card lost, lock the phone remotely, change passwords, call the police, freeze your bank cards
• Check your accounts' signed-in devices and authorized apps every so often, and remove the ones you don't use
• Take your medicine as prescribed to the end of the course, and don't stop just because you feel better
• Go for follow-up checks at the interval your doctor sets, and record every result in the same notebook
• Don't stop proper treatment to try folk remedies or health supplements
• Get an eye-ground exam once when diabetes is diagnosed, then at the interval your doctor sets, and have your feet checked every year
• If you have had a kidney stone, drink 2.5–3 liters of water a day and keep salt to no more than 6 grams
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• While an older person is still clear-headed, name their future guardian in writing
• Keep an older person's money in a separate account, and set a rule that large payments need two people to confirm
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• Stay away from any "invest for your retirement" scheme that asks an older person to pay first: cards, beds, retirement apartments, travel-retirement and senior products are all the same illegal fund-raising
• If someone at home is bedridden for a long time, treat pressure sores as the number one enemy: use a powered air mattress, turn them on a schedule, and check the bony spots every day
• Count the time cost of raising a child by whose time gets taken up, not by how tiring it is
• Count the money in three stretches: ages 0 to 3, compulsory education, and after compulsory education
• Much of the damage from dust, noise and toxic chemicals is irreversible (for example pneumoconiosis and noise-induced deafness): the employer must supply protective gear, and you can refuse work with no protective measures
• Don't believe "get to your workstation and it counts as a work injury": if you suddenly feel unwell, call 120 (China's ambulance number) first, don't rush to clock in
• Get all the vaccines in the national immunization program on schedule, which are free all the way, and if you miss one, only catch up on the doses not yet given
• Feed only breast milk for the first 6 months, not even water, start solid foods at 6 months and keep breastfeeding
• Mix formula with water above 70 ℃, let it cool before feeding, and throw away what is left
• Be sure the vitamin K shot is given at birth
• If a baby under 3 months has a temperature of 38 ℃, go straight to the hospital and don't watch at home
• For diapers, don't go by brand; look at three things: the fit, how often you change, and whether the product has been named in a spot-check report
• For big items, think in the order borrow, buy used, buy new, and don't buy everything at once
• Buy insurance that covers medical care and medical evacuation abroad, not just flight-delay insurance
• Treat any "high-paying job abroad" as a scam: people lured into running telecom fraud are also restricted from leaving China after they return
• Before driving yourself abroad, confirm whether the place accepts a Chinese driver's license; most "international driving permits" sold online are worthless paper
• Before leaving the country, send your itinerary, lodging and travel companions to a family member and agree how often to check in
• Don't eat candy or snacks from strangers, don't drink a drink that has been out of your sight, and don't accept vape cartridges that others hand you
• When your mood is bad enough to be depression, go for a walk or a run: the antidepressant effect size (how big the effect is) grows with intensity
• When anxiety gets in the way of life, a mindfulness-based stress reduction course works no worse than the commonly used anti-anxiety drug
• To settle down on the spot, use 5 minutes of "cyclic sighing": two breaths in, then a long breath out
• Treat meeting people regularly as a health expense, and don't look for people only when your mood is low
• Count nearby green space when choosing where to live, but don't expect "going to the park more" to extend your life
• Count schooling in the death-rate ledger too: each extra year of education lowers adult death risk by about 1.9%
• Turn “study or work” into a calculation: compare the three years of pay you'd earn by working now against the yearly income gap you'd gain over the next several decades by staying in school
• Start from the baseline: the global average private return to one more year of education (the part that lands in your own income) is about 9% a year
• When choosing a skill, give priority to work that needs your hands and on-the-spot judgment; it is the hardest to automate away
• After every visit, keep your own copy of your medical records, test reports and imaging
• For a serious or urgent injury or illness, go straight to the emergency triage desk and don't line up at the registration window
• If someone dies at home or elsewhere, first tell a natural death from an unnatural one: for an accident, an unknown cause, or someone found after living alone, call the police right away and don't touch the body or the scene
• You are responsible for what users post: set up review, a reporting entry, and when you find illegal content, stop it from spreading right away and report it
• When choosing a server, first ask whether you can live with downtime, then whether anyone will maintain it, and only last compare prices
• Start taking 0.4 mg of folic acid every day when you begin trying to get pregnant, and keep taking it until the end of the first 3 months of pregnancy
• At the first prenatal checkup, get tested for HIV, syphilis and hepatitis B; even if HIV is found, there is free blocking of transmission to the baby
• If you have risk factors for preeclampsia, start one low-dose aspirin a day after 12 weeks of pregnancy, as your doctor directs
• At 24 weeks of pregnancy or later, get screened once for gestational diabetes, and don't begrudge the sugar drink
• Memorize this “go to the hospital now” list; it applies throughout pregnancy and for a year after birth
• If your water breaks, lie down where you are, raise your hips, and call 120 (China's ambulance number); don't walk around or take a bath
• If you want labor pain relief, say so directly; it does not raise the risk of cesarean section
• Don't ask for a cesarean section without a medical reason, and don't have surgery just to pick a date
• Don't refuse the newborn heel-prick blood screening and hearing screening
• Don't skip the checkup at 42 days postpartum; in some places it is also a screening for postpartum depression
• Don't use extreme dieting, fasting or induced vomiting to control your weight; if you want to lose weight, do it on the exercise side
• Before an injection, thread lift or surgery, check two things: that the facility's license lists “medical cosmetology”, and that the person doing it is the attending physician
• Avoid the bridge of the nose, the area between the eyebrows and the forehead for facial fillers, and above all don't go to an unlicensed injector to save money
• Don't buy diet pills, slimming coffee, slimming candy or enzyme plums (plums said to be soaked in enzymes) that promise fast weight loss
• Don't use anabolic steroids (“muscle-building injections,” “oral pills”) to build muscle
• If you want a weight-loss drug or a weight-loss injection such as semaglutide, get a prescription at a hospital and follow the doctor's schedule for dose increases and follow-up checks; don't buy from online shops that ship without a prescription, and don't get injections at a beauty salon
• Use sex-hormone drugs only when a doctor has prescribed them and you have regular follow-up checks; don't buy them online or raise the dose yourself
• If “feeling ugly” has reached the point of checking the mirror again and again and wanting to change it again and again, get a body-image assessment before talking about surgery
• In the first days after a loved one dies, don't be alone; if you have heart disease, high blood pressure or diabetes, keep taking your medicine, and call 120 (China's ambulance number) if your chest feels crushed
• In the week you are told a serious diagnosis, don't go alone to get the results, and put decisions other than treatment off until later
• After losing a job, first fix your daily routine, your medical insurance and your job-search rhythm, and don't stay home all day
• If a loved one died by suicide, an accident or a homicide, don't try to tough it out; reach out for professional help
• In the first six months after a spouse dies, put meals, sleep, chronic-illness medicine and follow-up checks in the hands of one particular person who keeps watch
• If you have no relatives and no friends, replace “the person who keeps watch on you” with three things: a neighbor who can get into your home, the community's visit list, and an emergency contact in your phone
• After a parent dies, tell the child the truth and let them attend the farewell
• If grief is still stuck after six months and you can't get through your days, register at a psychiatry or clinical psychology department
• Don't start by paying for grief counseling; first see whether your grief is truly stuck (the symptoms in )
• After separation or divorce, don't let your medical insurance lapse, and don't prop yourself up with alcohol
• To have someone talk with you, call 12356 (China's national mental-health hotline); minors and teenagers call 12355 (national youth integrated service platform); to see a doctor, register at a psychological clinic
• In the first three months after a blow, put off every big decision that can't be undone
• Take a child to the hospital right away for sudden, worsening severe pain; don't make him hold out until school ends
• Don't put off treatment that is due just to “wait until exams are over”; some windows follow bone age, not the exam calendar
• If a child is bullied, report it to the school the same day and ask for a written response; report fights, extortion and rumor-spreading straight to the police
• Get a child at least 2 hours outdoors every day, the only way to prevent myopia that is currently supported by a randomized trial
• Read the report from the yearly school health checkup yourself, and take any abnormal item to a hospital the same year
• Have a child aged 12 to 18 screened for depression once, and don't treat the school's psychological assessment as a diagnosis
• Don't buy products or services that claim to “cure myopia” or “reduce the prescription”
• If poor eyesight is found, get a dilated eye exam at a hospital, then go back for follow-up at the intervals the doctor gives
• Get pit-and-fissure sealants once the permanent molars come in

Guides revised

• Is marriage worth it: breaking one muddled account into five clear ones：Rewritten in plainer language throughout.
• Home emergency supplies: what to buy, where to keep it, how often to check：Rewritten in plainer language throughout.
• When a stranger is in trouble on the road: walk away or stop：Rewritten in plainer language throughout.

New

• Don't pick up, take apart or sell metal parts of unknown origin, and stay away from anything with a trefoil warning sign
• Don't make “how other people are doing” your daily reading: set limits on, or turn off, apps that show your peers' posts
• When you feel that “everyone saw me embarrass myself,” cut that estimate in half
• Treat the thought “other people demand perfection from me” as a symptom, not as fact
• Count bead bracelets, jade, luxury watches and designer toys by "money spent," not "money saved"
• Treat blind boxes, gacha pulls and other random sales as money that will not come back
• Don't rely on a general checkup package to prevent disease; get the few screenings that have evidence for your age and sex
• Don't buy crystals, bead bracelets or pixiu charms for “changing your luck,” “attracting wealth” or “nurturing” you
• Don't count on buying things to improve your mood or sense of identity
• Don't spend more on a home, car or social circle to “move up a notch among the people around you”
• Don't test other people's systems without written authorization; "good intentions" and "reporting afterward" are not defenses
• Report vulnerabilities as the rules require, and before they are fixed don't publish the details, release exploit tools or hand them to anyone abroad

10 revised

• When your mood is low, start with the best-value things: get moving, get sunlight, sleep on time, talk to someone, and call 12356 (China's national mental-health hotline)
• Set a hard limit on short videos and aimless scrolling
• Don't get a whole-body PET-CT or a “tumor marker package” when you have no symptoms
• Don't force yourself into cold showers to “boost immunity”
• Don't treat giving blood as a health measure: there is no randomized trial behind “detox, lower blood fats, prevent heart attack,” and giving too often really does leave you short of iron
• Don't run your own programs on other people's computers, servers or cameras, and don't use company machines to mine cryptocurrency
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If you have had a kidney stone, drink 2.5–3 liters of water a day and keep salt to no more than 6 grams
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• When choosing a server, first ask whether you can live with downtime, then whether anyone will maintain it, and only last compare prices

New

• When a suicidal thought comes up, tell one person near you first, and hand over those next few dozen minutes
• Don't count on being “saved” as a safety net: after swallowing pesticide or breathing in gas, the emergency room can save a life, but not the lungs or the brain
• Don't gamble on “a few days lying down and I'll be fine” after a fall from a height: most people who reach a trauma ICU survive, but the cost is counted in years
• Don't sell a kidney for money thinking “one less kidney is nothing”: the remaining one does the work of two, and 86% of people who sold a kidney said their health got worse afterward
• Treat police officers, doctors and bank tellers as people working by the rules of their jobs, not as roles: what moves things forward is paperwork and deadlines, not emotion
• Don't treat giving blood as a health measure: there is no randomized trial behind “detox, lower blood fats, prevent heart attack,” and giving too often really does leave you short of iron
• Don't start uric-acid-lowering drugs just because a checkup found high uric acid when you've never had gout pain
• Don't have your gallbladder removed as a precaution just because a checkup found gallstones when you've never had pain
• Don't cut out calcium to prevent kidney stones
• Don't stage accidents or exaggerate losses to cheat on a claim: this is the crime of insurance fraud, and the people who testify for you, repair your car or assess your loss are convicted with you
• Don't sell your own organs and don't help anyone find a donor: a kidney that earns the seller just over 20,000 CNY is resold for 200,000 CNY, and the money is confiscated and a fine of 10 to 20 times the transaction amount is imposed
• If you have had a kidney stone, drink 2.5–3 liters of water a day and keep salt to no more than 6 grams
• If gout is diagnosed and you have tophi, bone erosion on imaging, or 2 or more attacks a year, take a urate-lowering drug long term, bring blood uric acid below 360 µmol/L and keep it there
• If someone at home is bedridden for a long time, treat pressure sores as the number one enemy: use a powered air mattress, turn them on a schedule, and check the bony spots every day
• If you have no relatives and no friends, replace “the person who keeps watch on you” with three things: a neighbor who can get into your home, the community's visit list, and an emergency contact in your phone

8 revised

• If you are depressed or thinking about suicide, call 12356 (China's national mental-health hotline), and don't keep a stock of sleeping pills or pesticide at home
• Don't spend big on supplements, herbal tonic pastes or tonic products to “balance the body”
• Give an older person a ready line for turning things down: "I have to go home and talk it over with my family"
• In the first days after a loved one dies, don't be alone; if you have heart disease, high blood pressure or diabetes, keep taking your medicine, and call 120 (China's ambulance number) if your chest feels crushed
• In the week you are told a serious diagnosis, don't go alone to get the results, and put decisions other than treatment off until later
• In the first six months after a spouse dies, put meals, sleep, chronic-illness medicine and follow-up checks in the hands of one particular person who keeps watch
• Don't start by paying for grief counseling; first see whether your grief is truly stuck (the symptoms in )
• In the first three months after a blow, put off every big decision that can't be undone

2 revised

• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• Don't skip the checkup at 42 days postpartum; in some places it is also a screening for postpartum depression

New

• If a knife, steel rod or glass is stuck in the body, press around the object to stop bleeding and do not pull it out
• If you suspect a fracture, stop moving that part, support it still, use a cold pack for no more than 20 minutes, and don't try to straighten it yourself
• Count schooling in the death-rate ledger too: each extra year of education lowers adult death risk by about 1.9%
• Turn “study or work” into a calculation: compare the three years of pay you'd earn by working now against the yearly income gap you'd gain over the next several decades by staying in school
• For a serious or urgent injury or illness, go straight to the emergency triage desk and don't line up at the registration window

§29 After a major blow、§30 Children once they start school

When a stranger is in trouble on the road: walk away or stop

New

• Don't have sex with someone who is drunk to the point of being unaware, asleep, or who may be under 14
• If an older person falls or someone collapses, crouch down, call to them and call 120 (China's ambulance number); don't rush to pull them up. Walking away from a stranger is also legal in China, but if you stop, don't move them
• If you come upon a group fighting, back away and leave; don't step in to break it up, don't stand and watch, and don't pick up anything from the ground; if you report it, move to a safe distance and dial 110 (China's police number)
• In the first days after a loved one dies, don't be alone; if you have heart disease, high blood pressure or diabetes, keep taking your medicine, and call 120 (China's ambulance number) if your chest feels crushed
• In the week you are told a serious diagnosis, don't go alone to get the results, and put decisions other than treatment off until later
• After losing a job, first fix your daily routine, your medical insurance and your job-search rhythm, and don't stay home all day
• If a loved one died by suicide, an accident or a homicide, don't try to tough it out; reach out for professional help
• In the first six months after a spouse dies, put meals, sleep, chronic-illness medicine and follow-up checks in the hands of one particular person who keeps watch
• After a parent dies, tell the child the truth and let them attend the farewell
• If grief is still stuck after six months and you can't get through your days, register at a psychiatry or clinical psychology department
• Don't start by paying for grief counseling; first see whether your grief is truly stuck (the symptoms in )
• After separation or divorce, don't let your medical insurance lapse, and don't prop yourself up with alcohol
• To have someone talk with you, call 12356 (China's national mental-health hotline); minors and teenagers call 12355 (national youth integrated service platform); to see a doctor, register at a psychological clinic
• In the first three months after a blow, put off every big decision that can't be undone
• Take a child to the hospital right away for sudden, worsening severe pain; don't make him hold out until school ends
• Don't put off treatment that is due just to “wait until exams are over”; some windows follow bone age, not the exam calendar
• If a child is bullied, report it to the school the same day and ask for a written response; report fights, extortion and rumor-spreading straight to the police
• Get a child at least 2 hours outdoors every day, the only way to prevent myopia that is currently supported by a randomized trial
• Read the report from the yearly school health checkup yourself, and take any abnormal item to a hospital the same year
• Have a child aged 12 to 18 screened for depression once, and don't treat the school's psychological assessment as a diagnosis
• Don't buy products or services that claim to “cure myopia” or “reduce the prescription”
• If poor eyesight is found, get a dilated eye exam at a hospital, then go back for follow-up at the intervals the doctor gives
• Get pit-and-fissure sealants once the permanent molars come in

16 revised

• Keep a fire extinguisher, fire blanket, escape smoke hood and first-aid kit at home, and check them once a year
• Drink boiled tap water; don't subscribe year-round to bottled water for a dispenser or buy bottled water
• Don't buy blue-light glasses to “protect your eyesight,” and don't believe that “a few months facing a screen ruins your eyes,” but treat swollen, painful, red eyes as an emergency
• Don't curse, spread rumors or forward unchecked claims online; if you are cyberbullied, keep evidence first, then call the police
• Keep a separate account for "marrying for your elders," and don't mix it with your own
• If someone collapses, doesn't respond to your calling and isn't breathing normally, press hard on the chest right away, and have a bystander call 120 (China's ambulance number) and find an AED
• If someone has a seizure and falls, clear the area around them, lay them on their side, time it by the clock, and put nothing in their mouth
• If a person with diabetes suddenly shakes, breaks into a cold sweat or slurs speech, first give 15 grams of sugar and recheck after 15 minutes
• If someone is electrocuted, cut the power first, then push the source away with a dry wooden stick or similar, and don't pull them with your bare hands
• If someone swallows cleaner, pesticide or medicine, don't make them vomit; take the bottle and go for care at once. If it splashes into the eyes or on the skin, rinse with plenty of water for at least 15 minutes
• If acid, alkali or another chemical splashes on you, take off the contaminated clothing at once, rinse with plenty of running water, hold the eyelids open when rinsing the eyes, and don't leave until you have rinsed long enough
• If you see someone drowning, first call for people and dial 110/120 (China's police and ambulance numbers), reach with a pole or throw something that floats, and don't go into the water yourself
• If someone is choking and can't speak, for anyone aged 1 or over stand behind them and give 5 back blows and 5 abdominal thrusts, and if they collapse, start CPR
• If you meet a bear, wild boar or a pack of wild dogs, don't run; turn sideways and back away slowly
• Much of the damage from dust, noise and toxic chemicals is irreversible (for example pneumoconiosis and noise-induced deafness): the employer must supply protective gear, and you can refuse work with no protective measures
• Don't skip the checkup at 42 days postpartum; in some places it is also a screening for postpartum depression