What is the probability that a 40-year-old Chinese man will die within a year?

Zhang Xuefeng, age 41, unfortunately died suddenly, and everyone's first reaction was "Too sudden."
But in the eyes of actuaries, no death is truly sudden. According to the China Life Insurance experience life table, the probability of a 40-year-old man dying within one year is about 0.1651%. This means that out of 1,000 average 40-year-old men, about 1-2 will die naturally within the next year.
By age 50, the one-year death probability rises to 0.4%-0.6%.
What is killing Chinese men? The top three causes of death: stroke, ischemic heart disease, lung cancer.
Cardiovascular diseases account for 44% of all deaths. Hypertension contributes 12% to China's total mortality. Smoking accounts for 10% in men. Lack of exercise contributes 6.8%.
Most people's understanding of death is dramatized. In reality, death is probabilistic.
Death is not an instant. Death is a distribution.
We fear airplanes but ignore cars. We fear sharks but ignore chairs. We fear sudden death but ignore staying up late. This is not ignorance; it’s a perception bug left by evolution — our brains are good at dealing with predators but not with slow variables.
Stanford decision analysis scholar Ronald Howard invented a unit: micro-death — a 1 in 1,000,000 chance of death.
Driving 370 kilometers = 1 micro-death. Riding a motorcycle 10 kilometers = 1 micro-death. Flying 1,600 kilometers = 1 micro-death. Skydiving once = 8 micro-deaths. Running a marathon = 7 micro-deaths. Swimming once = 12 micro-deaths. Climbing Mount Everest = nearly 40,000 micro-deaths.
Note: The risks of skydiving and marathon running are almost the same magnitude.
A 40-year-old man, every morning when he wakes up, "being alive" itself consumes about 3 to 5 micro-deaths. This is a fixed tax levied by age, with no exemptions.
If on that day you also drive 100 kilometers, smoke a few cigarettes, and drink half a bottle of alcohol, you easily exceed 10 micro-deaths.
The annual all-cause death risk for a 40-year-old man is about 1,651 micro-deaths.
The most profound insight of micro-deaths is revealing two completely different risk logics:
a. Micro-death measures acute risk — if you don’t die jumping today, your account is zeroed tomorrow.
b. But chronic risks like smoking, heavy drinking, and sedentary lifestyle accumulate slowly over time.
Cambridge statistician Spieghelth invented another unit for this: "micro-lifespan" — each unit equals a half-hour reduction in lifespan, permanently accumulated. Each cigarette steals about 11 minutes.
What’s the difference? Micro-death is Russian roulette: spin once, if it doesn’t go off, the game ends. Micro-lifespan is slow bleeding: you don’t feel it, but the blood keeps flowing.
What truly determines how a person dies is often not the final moment but countless small collapses ignored beforehand.
Here are 5 points for you:
1. Most people don’t die from a single moment but from long-term wear and tear.
2. Your tokens are limited; use them sparingly.
3. The essence of health is continuously lowering your death probability.
4. First, manage core variables like blood pressure, weight, sleep, and exercise.
5. Life-saving systems include quitting smoking, drinking less, regular checkups, early sleep, walking, and strength training.
Wishing you safety.