There are many such legends. It is also said that a man named Peng Zu lived to be 800 years old-this is of course false. But it's not impossible to be over 200. In the past, there were many high-ranking people in China who lived in seclusion and refined gas. The living environment is good, there is no pollution, and the diet is clean and vegetarian, which conforms to the health preservation theory of "cooked heat is less soft" in traditional Chinese medicine. Moreover, these people know more about pharmacology, and collecting herbs in the mountains will not get any diseases, but will grow more herbs.