Immortality and immortality have always been the highest goals pursued by mankind, whether it is Qin Shi Huang or Emperor Wu of Han, the first thing he did after taking power was to send warlocks to the Oriental Immortal Island described in mythology to seek the art of immortality, until the Ming Dynasty Jiajing Emperor, he was addicted to the art of immortality, even though only 3 of the more than 400 emperors in front of him survived 80.
Xu Fudongdu
So how long can humans live? In biology, there is a calculation criterion for the "physiological lifespan" of mammals: the length of physiological lifespan should be 5 to 7 times that of the growth period. For example, dogs, the growth period is 2 years, the life expectancy is 10 to 14 years; the growth period of cattle is 4 years, the life expectancy is 20 to 28 years; the growth period of people is calculated by the time when the last tooth grows, 20 to 25 years old is the age when most people grow the last tooth, so the shortest life expectancy is 100 years, the longest is 175 years. So according to the theory of biology, people can live up to 175 years old, of course, this is the gap between theory and reality, even if the development of science and technology has reached today's level, centenarians are remarkable.
Not to mention in ancient times, the average life expectancy of Chinese in feudal times was around 30 years. However, people who are familiar with history know that in ancient times, there was a cattle man named Peng Zu, who lived for more than 880 years in one breath. Let's not immediately deny it, let's see how this is calculated. It is absolutely impossible for a person to live to be 880 years old, but the historical records do record it this way. So, how is his age calculated? Historians give the most reasonable possibility, the historical record of 880 years old, in fact, according to the "small flower armor" method to remember the age, 60 years for a nail, and 60 days is a small nail, according to the small nail calculation, the modern sense of 1 year old is actually the ancient 6 years old, then Peng Zu is 140 years old, which is entirely possible.
South Korea claims that their ancestor Tanjun lived to be 1908 years old, which is too much, completely disregarding the laws of nature. According to Korean national myths and legends, Tanjun was born in 2333 BC on Mount Taebaek, and the Relics of the Three Kingdoms notes itself: "Taebai, now Myohyang Mountain." "New Dongguo Yudi Scenic Spot": "Myoxiang Mountain, one hundred and thirty miles east of Fudong, a Taibo Mountain." Later scholars also regarded Mount Taibai as the present-day Myoxiang Mountain. In 425 BC, the great Danjun died, lived for 1908 years, ruled Korea for 1500 years, and established the ancient Joseon State in 2436 BC, becoming the longest dynasty in Korean history.
After being dressed up by Koreans, South Korea's history has reached 4300 years, which has caught up with and is almost surpassing China's 5000 years.