The so-called emotions refer to seven emotions such as joy, anger, worry, thinking, sadness, surprise and fear. Any change in things has two sides, which can be beneficial or harmful to people. Similarly, people's emotions and emotional changes have both advantages and disadvantages. As "the record of nourishing and prolonging life" says: "moody is harmful." "Three causes and one disease syndrome" officially lists joy, anger, worry, thinking, sadness, fear and shock as the internal causes of the disease. However, under normal circumstances, the seven emotions play a coordinating role in the physiological functions of the body and will not cause disease. Everyone has worldly desires. Emotional activity is a normal physiological phenomenon of human beings. It is a protective response to external stimuli and internal stimuli, which is beneficial to physical and mental health.