The Yellow Emperor’s Classic of Internal Medicine. There is a discussion about health care: Huangdi asked: I heard that the ancient people, spring and autumn are a hundred years old, and the movement does not decline. The people of today, half a hundred years old and the movement are declining, the time and the world is different? People will lose yeah? The ancient people, who knew the law of yin and yang, and in the arts, eating and drinking in a disciplined manner, living in a regular manner, not delusional labor, so that the form and the gods, and the end of its natural life, and a hundred years before going, but not the people of today, to wine as a syrup, to delusion as a regular, drunk to enter the room, to want to exhaust its essence, to dissipate its true, do not know to hold full, from time to time, the gods, to fast its heart, contrary to the joy of life, living without discipline, so half a hundred years and decline. The five rules of health care are as follows: 1, the law of yin and yang: the law of yin and yang in nature should be followed in health care; 2, and in the arts and figures: the appropriate use of methods of health care, such as guidance, exhalation, etc. to exercise the body; 3, diet in moderation: the diet should be used in moderation, not overeating and overeating; 4, the regularity of living: the daily routine should be regular; 5, not delusional labor: the work does not go against the normal degree. These rules still have practical value for today’s health care.