Medicine and "Huang Jinlv" are inextricably linked. The ambient temperature is 22℃ to 24℃, while the normal body temperature of 0.6 18 (golden section) is 22.8℃. Under this environmental temperature, the metabolism, circadian rhythm and physiological function of the human body are in the best state. Modern scientific research shows that 0.6 18 plays an important role in health preservation. People often say, "Life lies in exercise." But there is another view that life lies in rest. In fact, from a dialectical point of view, the relationship between motion and static is 0.6 18, and four turns to six points of static should be the most reasonable. Studies have proved that people who eat 60% to 70% of a meal have almost no stomach problems; Six-point coarse grains and four-point refined grains are the most suitable diet. The best season in a year is cut by the golden section law, which is 0.6 18 of 12 months, and the best golden season in a year is around the end of July and the beginning of August. In this season, there are the most lymphocytes in human blood, and a large number of lymphatic factor resistant to various microorganisms can survive. Because people's immunity is enhanced, they are less sick and their work and life are at their peak.