Man is not only a natural person, but also a social person. People have consciousness, thinking, rich and complex mental activities, happiness, anger and sadness is the concentration of such mental activities. Do you know? When you are happy and sad, your stomach and intestines also change with your emotions, and will also be happy and sad. The main functions of the stomach and intestines are to temporarily store and grind food, digest and absorb, and empty various foods. These functions are regulated by neurological fluids. The stomach is the most susceptible to psychological and mental factors among human organs. Once the human spirit is suppressed, depressed, depressed mood, will be blocked, do not think about eating, gastric distension, even if you can barely eat, will feel full of uncomfortable, over time, there will be gastrointestinal diseases. On the contrary, when you are in a happy mood, calm, good mood, your gastrointestinal function is also good, the so-called eat well, sleep well, digestion is also. This shows that the relationship between psychological factors and health is quite close. Modern medicine has also discovered the important role of psychological factors in gastrointestinal diseases, and research in this area has become a hot topic in the study of the pathogenesis of gastrointestinal diseases.