A drowning person instinctively pulls their rescuer underwater, so anyone who enters the water risks drowning too. The proper sequence is: shout for h…
Cost
No cost involved. The hard part is resisting the urge to jump in.
Benefit
WHO reports that about 300,000 drownings occur worldwide each year, with 92% occurring in …
First ask, “Are you choking? Can you speak?” If the person can still cough forcefully or make sounds, let them keep coughing — coughing often dislodge…
Cost
No cost involved. To perform the technique: make a fist with one hand and place it just ab…
Benefit
According to the original text from the U.S. National Library of Medicine: First ask, “Are…
Stay right where you are, preferably next to your vehicle — it serves as the best shelter from the sun. The proper sequence is: if you have a signal, …
Cost
Before venturing into such areas, inform someone of your planned route, destination, retur…
Benefit
The National Park Service’s Mojave Desert page lists three key statements: “Each person ne…
When body temperature drops below 35°C, hypothermia sets in. Victims start to shiver, speak unclearly, walk unsteadily, and have trouble thinking. Rem…
Cost
An emergency thermal blanket costs just a few dollars, plus a spare dry set of clothes. Le…
Benefit
According to the U.S. National Weather Service, any body temperature below 95°F (35°C) ind…
Sit down and stay motionless; immobilize the bitten limb. Remove any rings or watches right away, as swelling will set in quickly. Get to a hospital w…
Cost
No cost involved. The key is knowing in advance which nearby hospitals stock antivenom; th…
Benefit
The WHO lists three key recommendations: “Immediately immobilize the affected body part an…
First, determine what kind of building you’re in. For structures built after 2001 that meet seismic codes, you’ll need to go down stairs or through a …
Cost
No cost at all. Just take a moment beforehand to see how many steps it takes to reach the …
Benefit
The China Earthquake Administration’s educational video “Earthquake: Hide or Run?” promote…
Never run — bears can sprint uphill or downhill just as fast as racehorses. Also, don’t climb trees; both black bears and brown bears are excellent cl…
Cost
No cost involved. When heading into the mountains, bring a hiking pole, hike in a group, a…
Benefit
The original guidelines issued by the U.S. National Park Service on bear encounters contai…
There is no safe spot outdoors during a thunderstorm. You must get into a hard-topped vehicle or building; convertibles and motorcycles do not qualify…
Cost
No monetary cost. The downside is that your trip gets interrupted for at least half an hou…
Benefit
There is no safe spot outdoors during a thunderstorm. It is only safe to leave 30 minutes …
This guideline focuses on sleeping altitude, not daytime elevation. Sleeping above 2,450 meters already poses a risk of altitude sickness. Once above …
Cost
It requires an extra day or two for acclimatization. Preventive medications are prescripti…
Benefit
Sleeping above 2,450 meters increases the risk of altitude sickness. Without prompt descen…
Use fine-point tweezers to grasp the tick’s head right against the skin, then pull steadily outward. Never apply oil, use heat, or yank sideways — doi…
Cost
A pair of fine-point tweezers.
Benefit
Applying oil, using heat, or pulling sideways can provoke the tick to release infectious f…
Any microbes capable of causing illness through water are killed within seconds at boiling temperature. Boiling for an additional minute simply provid…
Cost
You’ll need to carry extra weight in the form of a stove and fuel.
Benefit
All microbes that can cause disease via water are inactivated within seconds at boiling te…
Give him the money, do not fight back, and do not argue. By demanding a few hundred yuan, he is committing robbery — a crime punishable by at least th…
Cost
The cash you have on you. The real challenge is keeping your temper in check.
Benefit
Your life is far more valuable than a few hundred yuan. The offender is committing a serio…
If you intervene, your actions shift from “trying to calm things down” to “taking part in a fight.” Participating in a group brawl can land you in pri…
Cost
No money is required. The hard part is resisting the urge to step in and the temptation to…
Benefit
Article 292 of the Criminal Law states: “Those who lead or actively take part in group bra…
If you suspect you’ve been exposed to HIV, 72 hours is the hard deadline — ideally you should start PEP within 2 hours. The medication must be taken f…
Cost
A full 28‑day course of PEP can cost thousands of yuan; in most regions it must be paid ou…
Benefit
The Beijing Municipal Government’s HIV‑prevention outreach defines this as “post‑exposure …
If you get hurt while saving someone, you’re not simply out of luck. Those injured while acting in the public interest should receive treatment first,…
Cost
There is no direct expense. However, submitting the application requires paperwork, waitin…
Benefit
Article 183 of the Civil Code states: “Anyone who suffers harm while protecting another pe…
Pulling out the object can cause severe bleeding and makes it harder for doctors to assess the extent of the injury. The correct approach is to call 1…
Cost
No cost involved. The hard part is resisting the instinct to “pull it out” and instead sta…
Benefit
The 2025 International First Aid Guidelines from the International Federation of Red Cross…
Any injury to a limb should be treated as a possible fracture at first — being able to stand or move does not rule it out; only an X‑ray can confirm i…
Cost
No cost involved. Use a stiff board, rolled‑up magazines, or clothing as a splint. Wrap co…
Benefit
The International Federation of Red Cross and Red Crescent Societies released its 2025 Int…
Physical traces on the body, on clothing, and in the room are the most crucial evidence for identifying the perpetrator. Therefore, avoid showering, w…
Cost
Calling the police costs nothing. Emergency contraceptives are over-the-counter medicines …
Benefit
Prosecutors from the Beijing People’s Procuratorate state: “Whether minors or adults, anyo…
If the child can still cough or cry audibly, let them cough while you watch closely. If they cannot cry, their face turns blue, call 120, lay the baby…
Cost
No cost. Watch a demonstration once or take a short infant first-aid class — a few minutes…
Benefit
The American Heart Association and American Academy of Pediatrics issued 2025 pediatric ba…
No response to foot stimulation and no normal breathing — call 120 on speakerphone and do not stop. Encircle the chest with both hands and compress wi…
Cost
No cost. Infant CPR takes one hands-on class, half a day to a full day. The hard parts are…
Benefit
The American Heart Association and American Academy of Pediatrics 2025 pediatric basic lif…
A button battery lodged in the esophagus can generate caustic electrical burns that cause irreversible necrosis within 2 hours, even while the child a…
Cost
Zero financial outlay for prevention; emergency diagnostic X-rays and endoscopic/surgical …
Benefit
Data from the National Poison Data System spanning 1985 to 2009 showed a 6.7-fold increase…
An intoxicated person who loses consciousness can choke to death on their own vomitus or suffer respiratory arrest. Place them on their side in the re…
Cost
Zero monetary cost. Care requires several hours of vigilant physical observation, often la…
Benefit
NHS clinical guidelines list key signs of acute alcohol poisoning: severe mental confusion…
First apply direct firm pressure to the stump wound to halt bleeding and call emergency services. Wrap the severed digit in clean damp gauze, place it…
Cost
Zero financial cost for emergency preservation; emergency microvascular replantation and h…
Benefit
MedlinePlus emergency protocols instruct: apply direct manual pressure to the amputation s…
Handle the knocked-out tooth strictly by its white crown and never touch the root surface. If dirty, rinse gently with milk or sterile saline; if poss…
Cost
Zero financial cost for first-aid preservation; subsequent dental repositioning, splinting…
Benefit
NHS emergency guidance for a knocked-out tooth dictates: hold the tooth strictly by the cr…
