How long can people live?

How old can a person live, that is, how long is his natural life span? This is a problem that everyone is extremely concerned about. Scientists have done a lot of in-depth research on this, and now the most authoritative statement is:

Cytology: The natural life span of human body is equivalent to the product of cell division cycle. Human cells divide from embryos, with an average division cycle of 2.4 years and more than 50 times. So the natural life span should be around 120 years old.

Maturity theory: the order of human beings and mammals has the same law. The longest life span of mammals is 8 times-10 times that of sexual maturity, and human maturity is about 14- 15 years old, so the longest life span of human beings should be 1 12- 150 years old.

Growth period theory: any animal with a long growth period has a long life span, while mammals are ordered to be 5-7 times longer than their growth period, while humans are 20 -25 years old, so the natural life span of human beings should be 100- 175 years old.

Scientists have confirmed in many ways that the natural life span of people is between 120- 175 years old, but this is not the case. What is the reason why people want to live to a natural life?

It took millions of years for nature to create human beings, and at the same time, it injected many things that made human beings aging and dying, such as social pressure, environmental pollution, the threat of disease and so on. After synthesizing various natural and social causes of human aging and death, scientists believe that in order to live to a natural life, we must first find a breakthrough from the human body itself, because the original reason for shortening human life is the premature aging of human internal organs. Only by making unremitting efforts in delaying aging can human beings live to be over 120 years old.