First of all, ancient medical facilities were very backward, and children's immunity was weak, so it was difficult to treat them when they were sick, which led to a high mortality rate of children. Adults can live to be forty or fifty years old without natural and man-made disasters, so although the average life expectancy is only 26 years old, it is the result of premature death of children. At the same time, the ancient class system is also obvious. Sima yi belongs to the superior, and his living conditions are incomparable to ordinary people. When the living conditions are good, his life will naturally go up.
Of course, those above are just external factors. If you really want to live to 72 years old, it has something to do with many of your habits. In terms of diet, Sima Yi has a very good diet structure, never overeating, and pays attention to collocation and health preservation. At the same time, in the ancient drinking environment, many heroes were unhappy without drinking, but Sima Yi seemed a bit out of place, at least in the account, there was no record of Sima Yi drinking. What did Sima Yi do in terms of emotion? Good at forbearance? Be good at controlling your emotions. If a person can control his emotions well, his physical fitness will also be improved. Cao Cao looked down on Sima Yi and made him a counselor to feed the horses, which was overqualified. Zhuge Liang gave Sima Yi women clothes to humiliate him, and these Sima Yi put up with it. This can not only make a calm judgment on state affairs, but also help your physical and mental health.
At the same time, Sima Yi has a strong self-discipline ability, regardless of lust, and can control himself in the face of temptation. Compared with other great men whose wives are separated, Sima Yi has only one wife and three concubines in his life, which not only saves a lot of trouble, but also does not harm his health because of lewdness. To sum up, Sima Yi lived for 72 years, with external factors and good living habits.