Health not only refers to physical health, but also includes mental health and good social adjustment. Physical health refers to the absence of pathological changes in the human body. Mental health refers to the process of adapting to the environment, the physiological, psychological and social adaptation of the individual to achieve coherence, maintain a good state of mental function, and its cognitive, emotional response, volitional behavior in a positive state, and can maintain the normal regulatory capacity. Mental state mainly refers to the emotional state of a person, how does it relate to physical health? Good mood can make people maintain good physical and mental health, if the emotional depression, irritability, fear, anxiety state will make some people produce psychophysiological diseases such as hypertension, diabetes, coronary heart disease, peptic ulcer, cancer, etc.. For people who have already suffered from a certain disease will further aggravate the physiological dysfunction to reduce, accelerate the resistance to disease, further aggravation or deterioration of the original disease. Persistent bad moods often lead some people to seek some wrong ways to cope, such as long-term heavy alcohol abuse: over time, alcohol dependence or alcoholism leads to personality changes, intellectual decline or certain psychiatric symptoms, and even suicide, impulsivity, injury, destruction or illegal behavior. It can also lead to overeating: causing endocrine disorders, and also paralyze themselves through drug use and other means, resulting in drug addiction syndrome over time. Bad mood not only affects the quality of life, leading to interpersonal tensions or worsening family conflicts or marital breakup, for growing children living in a depressed environment will subtly affect the development of healthy emotions, and even lead to their bad behavior or personality disorders. Conversely, physical illness can also produce bad mood. Therefore, physical health and mental state are closely related, and have a mutual influence and mutually reinforcing effect.