Medicine is inextricably linked with 0.6 18, which can explain why people feel most comfortable in the environment of 22-24℃. Because the product of the body temperature of 37℃ and 0.6 18 is 22.8℃, and the metabolism, circadian rhythm and physiological function of the human body are in the best state at this temperature. Scientists also found that when the external environment temperature is 0.6 18 times of human body temperature, people will feel most comfortable. Modern medical research also shows that 0.6 18 is closely related to the way of keeping in good health, and the dynamic-static relationship is 0.6 18, which is the best way of keeping in good health. Medical analysis also found that people who eat 60% to 70% full will hardly have stomach problems.