The concept of excessive internal heat caused by climatic factors in the theory of traditional Chinese medicine is different in the diet structure between the east and the west. Their natural environment shows that their diet structure is reasonable, and they also know the concept of health preservation. For example, if there are few vegetables in spring, use raw fish to get angry. Drinking tea to supplement vitamin C Westerners eat more meat but rarely get cerebral thrombosis, because onions and cabbage are specially used to treat blood viscosity. So there is no fire at all, so there is no fire.