Wearing a seat belt in the front seat cuts the risk of dying in a crash by roughly half. For drivers and passengers in light trucks, the reduction is …
Cost
No cost at all. It only adds about 2 seconds to every trip.
Benefit
According to NHTSA estimates, seat belts lower the risk of fatal injury for front‑seat occ…
Wearing a helmet and fastening the strap properly reduces a motorcyclist’s risk of dying in an accident by roughly 40%. The chance of suffering a head…
Cost
A helmet costs between 100 and 300 yuan. It takes just 5 seconds to put on each time.
Benefit
Cochrane pooled data from multiple studies. For motorcyclists wearing helmets, the risk of…
A properly functioning smoke alarm can cut the risk of dying in a home fire by roughly 60%. Forty percent of fire victims are asleep at the time, so t…
Cost
A smoke alarm costs between 30 and 100 yuan. A carbon monoxide alarm costs between 50 and …
Benefit
A study in North Carolina examined homes that had experienced fires versus those that hadn…
Replace expired gas hoses and appliances: this is a user obligation in China's Regulations on Urban Gas Management. The regulations prohibit unauthori…
Cost
A compliant gas hose costs only a few dozen yuan. Stoves should be replaced every few year…
Benefit
The regulations designate “promptly replacing gas appliances and connecting hoses that hav…
In 2025 alone, there were 828 cases of mushroom poisoning across China, affecting 2,165 people, with 13 fatalities. That same year, 34 previously unkn…
Cost
No expense involved. The hard part is giving up a seasonal delicacy.
Benefit
The Chinese CDC investigated 828 mushroom poisoning cases in 2025 involving 2,165 individu…
Pushing an electric bike into a stairwell, elevator, or charging it at home is strictly prohibited under the Ministry of Emergency Management’s regula…
Cost
No direct cost. The tricky part is having to walk a few dozen meters each time to reach th…
Benefit
The regulations explicitly forbid parking or charging electric bikes in public lobbies, ha…
For every 10 mmHg drop in blood pressure, the risk of major cardiovascular problems falls by 20%, stroke risk drops 27%, heart failure risk drops 28%,…
Cost
An electronic sphygmomanometer costs 100–200 RMB. Each measurement takes 1 minute. Most an…
Benefit
Data from 123 clinical trials involving over 610,000 participants shows that a 10 mmHg red…
For just a few dozen yuan, a single blood test can detect prediabetes even when there are absolutely no symptoms at all. Official US screening guideli…
Cost
A fasting blood glucose test costs just a few dozen yuan. Testing for glycated hemoglobin …
Benefit
The US Preventive Services Task Force is the official body that issues screening recommend…
On average, for every 1% increase in speed, the chance of a fatal crash rises by roughly 4%. There is no safe blood alcohol level for driving. Manipul…
Cost
There’s no direct cost. Driving a bit slower adds just a few minutes to each trip. The har…
Benefit
According to the World Health Organization (WHO), a 1% rise in average vehicle speed produ…
For infants under one year old, using a car seat cuts the risk of a fatal injury in a crash by roughly 70%. For children aged 1 to 4, the risk drops b…
Cost
A seat costs between 300 and 2,000 yuan and lasts several years. It adds about one minute …
Benefit
According to the U.S. National Highway Traffic Safety Administration (NHTSA), car seats lo…
These window guards cost only a few dozen yuan each. New York City once offered free window guards to high-risk households and provided on-site guidan…
Cost
A set of window guards or child safety locks costs just a few dozen yuan to install, and t…
Benefit
Since 1972, New York City has run a program called “Kids Can’t Fly,” which distributes fre…
Wearing a life jacket while in the water cuts the risk of drowning to roughly half compared to not wearing one. Drowning remains the leading cause of …
Cost
Life jackets cost between 50 and 200 yuan. Additionally, parents must dedicate constant at…
Benefit
Research using U.S. Coast Guard data compared similar groups of people. For individuals wh…
Doing balance exercises such as Tai Chi two or three times weekly can cut the overall number of falls among older adults by roughly 23%. It also reduc…
Cost
Aim to practice balance exercises two to three times per week, each session lasting 30 min…
Benefit
Cochrane analyzed 108 separate trials involving 23,407 participants. Collectively, these s…
The test itself is very inexpensive. In Qidong’s 30‑year follow‑up study, infants who received the hepatitis B vaccine at birth had an 84% lower risk …
Cost
The test costs just a few dozen yuan per person. For adults lacking antibodies, three dose…
Benefit
This Qidong trial used group randomization rather than individual assignment and was track…
Once tetanus sets in, about 1 out of every 10 people dies. The risk is highest for deep wounds or wounds contaminated with dirt. If a wound is dirty a…
Cost
Seeing a doctor and having the wound treated typically costs a few dozen yuan. If a shot i…
Benefit
In the U.S., roughly 1 out of every 10 tetanus cases ends in death. Deep wounds and those …
Data from 1.67 million Swedish women show that those who received the HPV vaccine before age 17 have only about one‑eighth the risk of developing inva…
Cost
Domestic bivalent vaccines cost around 300 RMB per dose, while imported 9‑valent vaccines …
Benefit
Swedish research on 1.67 million women found that vaccinated individuals have a much lower…
For women aged 40 to 74, having a mammogram every two years is a clear recommendation in official US screening guidelines. For women over 75, and for …
Cost
A mammogram costs around 200–300 yuan each time. Many regions also offer free screening pr…
Benefit
The US Preventive Services Task Force is the official body that issues screening recommend…
In that rural Indian trial, women who underwent just one HPV test in their lifetime had roughly half the risk of dying from cervical cancer and about …
Cost
An HPV test costs between 100 and 300 yuan. Women with a negative result can get tested ag…
Benefit
This trial in rural India used group-level rather than individual randomization, involving…
Getting a low-cost fecal occult blood test every year or two lowers the chance of dying from colorectal cancer by roughly 16%. For people who’ve had a…
Cost
Fecal tests cost just a few dozen yuan and can be done every 1–2 years. Colonoscopies cost…
Benefit
Cochrane pooled data from multiple studies showing that individuals undergoing fecal occul…
In a trial involving people after a heart attack, the yearly death rate dropped from 4.9% to 2.9% after they received the flu vaccine. For people with…
Cost
One shot costs 50 to 150 yuan. It should be given once each autumn.
Benefit
This trial included 2,571 participants after a myocardial infarction; neither doctors nor …
In clinical trials, this vaccine proved 97% effective at preventing shingles across all age groups. The downside is that both doses cost several thous…
Cost
The recombinant shingles vaccine requires two doses, costing roughly 3,000 to 4,000 yuan i…
Benefit
This Phase 3 trial involved 15,400 participants from 18 countries. Participants were rando…
In a trial involving 84,500 seniors, the 13-valent pneumococcal vaccine cut cases of pneumonia caused by strains it targets by roughly 46%, and reduce…
Cost
Several hundred yuan. In some regions, it is provided free of charge for seniors.
Benefit
Researchers in the Netherlands randomly assigned 84,500 seniors over 65 to two groups for …
A 22-year follow-up study conducted in Linqu, Shandong, showed that individuals who had Helicobacter pylori eradicated had roughly half the risk of de…
Cost
The carbon-13 or carbon-14 breath test costs 100 to 200 yuan. Eradicating the bacteria req…
Benefit
This randomized trial in Linqu, Shandong, followed participants for 22 years. Those who un…
Eligible heavy smokers who get a low-dose CT once a year have a 20% lower risk of dying from lung cancer and a 6.7% lower overall risk of death compar…
Cost
The test costs 200–400 yuan per session and takes just 10 minutes. You must also factor in…
Benefit
The NLST trial in the U.S. enrolled 53,454 participants aged 55–74 with at least 30 pack-y…
Removing lethal items from easy reach is a proven way to cut suicide risk: after restricting access to painkillers, suicide rates linked to them dropp…
Cost
There’s no cost involved. You just need to make one phone call. Plus, lock away any medica…
Benefit
A recent review of nearly a decade’s worth of research confirms that limiting people’s acc…
Fire extinguishers, fire blankets, escape respirators, and first-aid kits are all included in the Emergency Management Department’s list of 11 essenti…
Cost
A set of fire extinguishers, fire blankets, one respirator per person, and a first-aid kit…
Benefit
The Emergency Management Department’s “National Recommended List of Basic Household Emerge…
Among people aged 60 and older, the chance of ultimately being diagnosed with bladder cancer after experiencing one episode of visible blood in urine …
Cost
A routine urine test costs just a few dozen yuan, while a urinary-system ultrasound runs a…
Benefit
A UK study analyzed electronic medical records from primary-care clinics, comparing 4,915 …
Men with erectile dysfunction later develop cardiovascular disease at roughly 40% higher rates than other men, and heart attacks at about 60% higher r…
Cost
A doctor’s visit costs just a few dozen yuan. Measuring blood pressure and running tests f…
Benefit
One meta‑analysis combined data from 14 long‑term studies involving 92,757 men, followed f…
Using a condom every time throughout sex cuts the chance of HIV transmission between heterosexual partners by roughly 70% or more. “Most of the time” …
Cost
A single condom costs just one or two yuan. The challenge isn’t the price, but making sure…
Benefit
One study pooled data from 25 separate studies involving 10,676 heterosexual couples in wh…
Testing for HIV at the Chinese CDC costs nothing. According to the “National Measures for HIV Testing Management,” staff are prohibited from disclosin…
Cost
There is no charge. You simply visit the Chinese CDC or a designated medical facility and …
Benefit
Article 23 of the “Regulations on HIV/AIDS Prevention and Control” mandates that local hea…
Among 82 people who attempted suicide, 47.6% reported that only 10 minutes or less passed from the first appearance of suicidal thoughts to the actual…
Cost
No cost involved. The hard part is actually speaking up at that moment and admitting you c…
Benefit
Interviews conducted within three days of admission with those 82 individuals showed that …
There is no antidote for paraquat. Gastric lavage is not recommended, and neither hemofiltration nor dialysis alters its disease progression. Paraquat…
Cost
No cost involved. It simply helps you understand this reality up front.
Benefit
A systematic review on paraquat poisoning highlights its extremely high mortality rate, st…
A trauma ICU in southern Xinjiang evaluated patients who fell from heights. Only 5.5% died either in the hospital or within 30 days. The vast majority…
Cost
No cost at all. It simply helps you see the full picture.
Benefit
From April 2020 to July 2024, the same ICU recorded 289 cases of falls from heights; the a…
First, consider the best-case scenario: legitimate donors who pass rigorous screening and receive post‑surgery follow‑up. In U.S. data from nearly 96,…
Cost
No cost at all. It simply requires a clear look at the facts.
Benefit
U.S. researchers compared 96,217 living kidney donors with 20,024 similarly healthy non‑do…
Radiation has no smell, color, or temperature. Most radioactive sources look like ordinary pieces of metal, so “it looks harmless” is not a reliable i…
Cost
No cost involved. If you see unfamiliar metal cylinders, lead containers, or parts removed…
Benefit
As of 2025, roughly 178,000 radioactive sources and 355,000 radiation devices are in use n…
Individuals who have sought treatment for gambling problems are 15 times more likely to die by suicide and 1.8 times more likely to die overall compar…
Cost
No cost involved. Simply make one phone call and give your bank cards, payment passwords, …
Benefit
A nationwide Swedish registry study examined 2,099 individuals diagnosed with gambling dis…
People who aren’t yet infected can take an antiviral drug called pre-exposure prophylaxis to protect themselves. Those who take it consistently cut th…
Cost
This is a prescription medication, so in most places it must be paid for out of pocket. Pr…
Benefit
This medication is a fixed-dose combination of emtricitabine and tenofovir. In the iPrEx t…
Women aged 65 and older, and postmenopausal women with osteoporosis risk factors, should have bone density measured once. When screening starts with f…
Cost
A hospital DXA scan of the lumbar spine and hip takes a few minutes lying down. Out-of-poc…
Benefit
The U.S. Preventive Services Task Force 2025 recommendation is osteoporosis screening for …
If osteoporosis is confirmed, or you have already fractured from a light fall, following a doctor's drug plan cuts hip fractures by about half and sym…
Cost
Prescription required; use continues for years. Common options include once-weekly oral dr…
Benefit
Fragility fracture means a fracture from minor trauma or everyday activity. The Chinese Me…
Official safety standards require ice to be at least 15 cm (6 inches) thick before adults can safely skate on it. Guidelines in the United States and …
Cost
The most cost-effective option is to use managed, regulated ice rinks, which incurs no ext…
Benefit
Official meteorological and water safety guidance states that ice must reach 15 cm in thic…
Angle grinders spin at extreme speeds (over 10,000 RPM). If an abrasive disc shatters, fragments fly out at ballistic velocity, and mounting a toothed…
Cost
A pair of impact-rated safety goggles and a full-face shield cost $15–$30. Checking the gu…
Benefit
Safety directives from the Canadian Centre for Occupational Health and Safety (CCOHS) and …
The widespread fear that asking someone about suicide puts the idea in their head is directly refuted by scientific evidence. In randomized trials whe…
Cost
Zero financial cost. Asking takes seconds, followed by taking time to listen attentively w…
Benefit
In a randomized controlled trial published in JAMA involving 2,342 students across six New…
Atrial fibrillation (AFib) causes the heart's upper chambers to beat chaotically, allowing blood to pool and form clots; if a clot travels to the brai…
Cost
A standard ECG costs just a few dozen yuan (under $10). Warfarin is inexpensive but requir…
Benefit
AFib causes chaotic atrial quivering, leading to blood stasis and thrombus formation. The …
Hepatitis C virus (HCV) can silently damage the liver for decades without causing any symptoms; a simple antibody blood test, followed by an RNA test …
Cost
An anti-HCV antibody blood test costs a few dozen yuan ($5–$15) out of pocket. If positive…
Benefit
Hepatitis C is a blood-borne viral infection with no preventive vaccine. The World Health …
For individuals aged 45 and older in high-risk categories for gastric or esophageal cancers, undergoing gastroscopy is associated with a roughly 50% l…
Cost
A standard diagnostic gastroscopy costs a few hundred yuan ($40–$80); painless gastroscopy…
Benefit
The 2024 screening protocols issued by the National Health Commission of China define high…
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