What is a person s lifespan, and how to calculate how many years a person s lifespan is?

The average life expectancy of human beings is related to factors such as social institutions, socio-economic development, social health care measures, and scientific and technological progress. Before liberation, the average life expectancy of our people was about 35 years. After liberation, according to the statistics of the 1978 census, the average life expectancy of the Chinese people was 69 years for men and 69 years for women, which was nearly double that before liberation.

In 1980, the average life expectancy of the population in most parts of China exceeded 70 years, which was among the world's advanced levels. In addition to the political emancipation, the improvement of the economic situation, the improvement of living standards, and the improvement of sanitary conditions, the increase in the average life expectancy of the population in our country is also related to the dietary habits. The people's diet is mainly based on cereals, vegetables, crude fiber and vegetable oil, and refined cane sugar, animal fats and cholesterol account for a small proportion of the food.

This dietary peculiarity is beneficial in preventing the occurrence of cardiovascular diseases. According to statistics, among the causes of death, the most common cause of death after the age of 65 is cardiovascular and cerebrovascular diseases. Scientists believe that the onset of atherosclerotic coronary heart disease in Chinese people is 10-15 years later than that of Europeans and Americans, which may be related to the characteristics of this diet in China.

Therefore, when the standard of living continues to improve, it is beneficial to continue to retain this dietary structure to prolong life.

The natural lifespan of a human being is 250 years.

The year of death minus the year of birth.

In fact, people's life expectancy often does not reach the level said upstairs, the average life expectancy of the world population is more than 70 years old, the average life expectancy of the Chinese population is more than 60 years old, and Japan, which is closest to our race, has an average life expectancy of more than 80 years, which is 15 years higher than the average life expectancy in China, and there are 8,000 elderly people over 100 years old in Japan. Everyone can live to be 100 years old. But can you guarantee that you will always be healthy? We all know that wine is a poison that pierces the intestines, but don't you drink it?

We all know that color is a steel knife that scrapes bones, but can you? Qi is a tiger descending the mountain, who doesn't have something to worry about, can you not be angry? Money is the root and seedling of trouble, can you afford to buy a house without working hard to earn money?

How old a person can live at most depends on how good his mentality is, as long as he is not tired of fame and fortune, everyone can live to be 100 years old! acxvdfdxcx

At present, the average life expectancy in China has reached 75 years.

life, pronunciation: shòu mìng

Definition: The number of years of life. The latter is also a metaphor for the duration of existence or the duration of use.

Source: "Chu Ci Da Zhao": "Yongyi is a body, and life is guaranteed."

Historical Records: The Biography of Lislie": "Pray to the gods of the famous mountains to prolong life." "Tang Hanyu's "Ouyang Sheng's Lamentation":

Life is uneven, humane is common, and there is no difference between the side and the distance. ”

The so-called life span refers to the time of the body's survival from birth, growth, maturity, aging and even death, and is usually measured by age. Because there are certain differences in life expectancy between people, the average life expectancy is usually used when comparing the life expectancy of humans in a certain period, a certain region or a certain society. Life expectancy is often used to reflect the level of medical development of a country or a society, and it can also indicate the economic and cultural development of a society.

The normal lifespan of a cell is 120 years.

It is about 120 years old, but due to human birth, old age, illness, death, etc., and some external factors, the actual life expectancy of human beings is several years to decades shorter than the normal life expectancy. Therefore, it can be said that life is short in life, and we must learn to cherish life.

Biologists deduce that mammals live 5 7 times longer than their growth period. A person's growth period is calculated by the time it takes for the last tooth to erupt, with an average of 20 to 20.

25 years old. Therefore, the theoretical lifespan of man is the shortest.

100 years old, the oldest.

175 years old. At present, it is accepted that the ideal life expectancy of a person should be 120 years.

It is recorded that the maximum life expectancy of a human being is 144 years.

Looking at each person's physique, we tentatively set the average life expectancy of a person at 72 years, please increase or decrease your life expectancy according to your answers to each question: 1 If you are a male, subtract 3 years from 72 years old; If you are a woman, add 4 years old. 2. If you live in an urban area with a population of more than 1 million, minus 2 years old; If the population of the township is less than 10,000, 2 years old will be added.

3 If you are engaged in mental work, subtract 3 years; Engage in manual labor plus 3 years old. 4. You are physically active more than 3 times a week (more than half an hour each time) plus 4 years old; 2-3 times of activity can only add 2 years old; No addition or subtraction if inactive. 5 If you are still single after the age of 25, subtract 1 year from every 10 years; Married plus 5 years old.

6. Sleep more than 10 hours a day, minus 4 years old; Sleep for about 7 hours, no increase or decrease; Poor sleep reduces 3 years old. 7. If you love to be in a hurry, lose 3 years old; If you are calm and stable, add 3 years old. 8. If you always feel that you don't have enough money to spend, and you want to find some extra money, lose 2 years old.

9 If you have secondary education plus 1 year old, higher education plus 2 years old. 10. If you continue to work after retirement, add 3 years old, and do not work without adding or subtracting. 11 If a close relative dies of cancer and does not live past the age of 50, the age shall be reduced by 3.

12. Smoking more than 3 boxes a day will be reduced by 8 years old; Smoke a box to reduce 6 years old; Less than a box minus 3 years old. 13 If you drink every day, even if you don't drink much, you will lose 1 year of age. 14. If you weigh more than the standard value by 20 kg, minus 8 years old; Over 15 kg, minus 4 years old; More than 5 kg, minus 2 years.

Although the test obtained by the above items is only an approximate lifespan, it is true that the purpose of increasing life can be achieved by discovering and correcting bad habits.