Insomnia can be caused by many factors, such as violation of the physiological clock can cause insomnia, long-term nurses working on third shift or workers in factories and mines working in shifts, students studying for exams before the entrance exams, etc., due to the disruption of life rhythms can lead to insomnia; bad habits such as drinking strong tea and coffee before bedtime can disrupt normal sleep; alcohol dependency is often accompanied by insomnia; serious life events such as the death of relatives, unemployment, failure to attend school, loss of love, divorce of husband and wife, earthquake, fire, flood and war can lead to insomnia; various physical diseases such as trauma, pain, cancer, heart, lung, liver and kidney diseases can lead to insomnia. Serious life events such as death of relatives, unemployment, school failure, love loss, divorce, earthquake, fire, flood and war can lead to insomnia; various physical diseases such as trauma, pain, cancer, heart, lung, liver and kidney diseases can lead to insomnia; various mental disorders such as depression, mania and schizophrenia can lead to insomnia; people entering menopause are often accompanied by insomnia; addicts of toxic and narcotic drugs, bad users of sedative and sleeping agents can also lead to insomnia. People who are addicted to drugs and narcotics, and users of sedatives can also suffer from insomnia. In short, there are many causes of insomnia, different causes of insomnia, different ways to deal with, such as insomnia caused by bad habits, lifestyle changes may be effective in improving sleep; if the insomnia caused by jet lag, appropriate rest, sleep can be improved; if the insomnia caused by life events and other factors, generally over time, through self-adjustment, coupled with supportive psychological guidance If insomnia is caused by life events, it can be significantly improved over time through self-adjustment and supportive psychological guidance, and serious cases need to be treated with sedative and hypnotic drugs (under the guidance of a doctor, of course); while insomnia caused by somatic diseases must first be treated with the original disease, supplemented by sedative and hypnotic treatment, and sleep will be naturally improved after the somatic disease is cured. If the insomnia is caused by psychiatric disorders, it needs to be treated with relevant medications (see psychiatric clinic and be treated under the guidance of a doctor).