People often pursue physical health, pay attention to physical health, but often ignore mental health. Mental health is the application of theories, methods and technologies of psychology and mental health, the implementation of the "prevention first" health policy, the protection of people's physical and mental health, and the prevention of various psychological disorders and mental diseases. From birth to individual development, everyone must pay attention to mental health. As Karl Hocht, a German mental health scientist, thinks, paying attention to mental health should strengthen the systematic exercise of brain power and creativity, pay attention to the optimization of social conditions, eliminate the monotony of labor and leisure, avoid asking too high or too low, and avoid overloading the nervous system, so as to be able to deal with and adapt to various contradictions and setbacks in daily life.