Insomnia is a subjective experience of insomniacs who are dissatisfied with sleep quality, sleep time, and sleep efficiency. Common causes are as follows: 1. Family factors: the incidence of insomnia in people with a family history of insomnia is three times higher than in people without a family history; 2. Stressful events: a change in the sleep environment or some unexpected events around you that lead to large emotional fluctuations, high work intensity or stressful life, etc.; 3. Lifestyle habits: pillow discomfort or usually drinking a lot of energy drinks, being too full or too hungry, spending too much time in bed during the day or due to 4, self-trait personality: such as perfectionists, introverted personality or people with anxiety characteristics, etc.; 5, past history: certain physical and mental diseases, common endocrine disease patients, or taking hormones, stimulants and other drugs; 6, age and gender characteristics: age is an important risk factor for insomnia, adult women with the gradual increase in age insomnia is also gradually There is a high prevalence of insomnia in adult women with increasing age, but there is no gender distribution difference in childhood. Therefore, insomnia is the final outcome of a variety of complex factors, including changes in physiological, psychological, environmental and other factors, as well as drug, neuropsychiatric and somatic disorders.