There was a time when eating a red meat was a landmark event in people’s happy lives, but today, with great material abundance, we don’t know what to eat to feel our happiness. The foreign school has western ginseng, lecithin, fish oil, protein powder, various vitamins, the local is royal jelly, pollen, deer fetus cream, snow clam. The supermarkets and pharmacies are all the rage, and the ordinary green beans are actually available in strange quantities, and the paper is expensive. The wallet is bulging, our first thought is to meet our appetite as much as possible, but what to eat, how to eat has become a headache for us. First of all, trust your own feelings, humans are also animals, animal instinct is to find their own need to supplement the things to eat. But humans are “advanced” animals who have gradually lost their animal instincts, and we often do not really know what we need. Therefore, relearning to feel the signals from our body is the most fundamental prerequisite for us to know what to eat. Dry mouth and bitterness, bloating every evening, burping long after meals, frequent urination and yellowing, sticky stools, poor sleep and night dreams. In the opinion of Chinese medicine, there are many problems with all of these, even what you dream is learned, not the interpretation of dreams, but precisely the instinctive reaction of people. But we need to focus on too many things, study, work, promotion, house, car, ticket, ignore the most only our own body. How many people can sit down and quietly think: I am eating cold pain? Or drink hot comfort? After a good meal of spicy hot pot, the next day, my stool is thin is dry? What factors may be associated with the recent lack of sleep at night? Summarize and reflect on it. Details determine fate, health care is concerned about the details. Secondly, we need to know the concept of “degree”, Confucianism speaks of the middle way, Taoism advocates the rule of inaction, in fact, are this degree. The “hyper is harmful, Cheng is the system”, too much or too little is the root cause of disease. Everyone thinks there is nothing wrong with vitamin supplements, but now it is found that if you take them in excess and for a long time, they can have the same side effects. In recent years, the consumption of iodized salt has been promoted and there is no salt on the shelves of supermarkets that does not contain iodine, but the downside of too much iodine is also becoming apparent. We thought that eating more animal oil was bad, so margarine was born, and it turned out that the latter was no less harmful than the former. “One side of the land feeds one side of the people”. People are food, since ancient times, food is not just a discipline, but a culture. Thousands of years of cultural accumulation of the Chinese people has created a rich tradition of food. The eight major cuisines have their special historical background and different regional characteristics. Spicy, sweet, light, or salty, and the local climate, soil, environment, and even folklore have a direct or indirect relationship. If you do not take into account the regional variations, a lot of unnecessary damage is inevitable.