Why are old people 73 or 84 years old? Is there a scientific basis?

This is based on science. According to the research of scientists, the human body has a certain physiological cycle, which is about ten years.

At the peak of the physiological cycle, the metabolism is relatively strong, and it is not easy to produce diseases, so it is not easy to die. On the contrary, metabolism is slow at low tide. Easy to get sick, especially chronic diseases, and easy to die. For the average person, this low tide period appeared in 74 or 83, so it gives people the impression of "stuck" and thinks it is easy to die. In fact, there is still a "card" after 74 and 83, that is, the low tide period, but it was difficult for people to live to such a big age before, so it was not handed down.

There is an old saying in China: "73 84, the prince came uninvited." I don't know what the scientific truth of this sentence is, but there are quite a few people who have died since ancient times. Confucius died at the age of 73 and Mencius died at the age of 84.

President Mao Zedong passed away at the age of 84. These people will never be erased in the history of China. Their deaths are fully representative. Many ordinary people died at the age of 73 and 84, but no one counted these figures. It seems that these two hurdles are insurmountable in a person's life, but once you cross one of them, you can live for several years.

Pope John Paul II is a respected pope. People prayed for his health and longevity, but he didn't resist the temptation of Yan. He died just after spring at the age of 84. Therefore, for everyone who reaches 73 or 84, you should live more carefully. Don't let Yan call you away.