Occasional insomnia is a normal phenomenon, healthy normal people also occasionally insomnia, most of the short-term insomnia, and external environmental changes have a direct relationship, such as the patient’s business trip to change the sleeping environment or the emergence of stressful events that lead to easy anxiety, stress, such as the next day to the examination or interviews, there are important work meetings, etc., the patient because of gain or loss of the heart of the heavy, resulting in stress, stress and easy to insomnia. Insomnia, after the removal of external factors, the patient’s sleep condition can be restored to normal. If insomnia persists for a long time, especially for more than three consecutive months, it is necessary to go to neurology or psychiatry to exclude other organic diseases that can cause insomnia, and then follow the treatment of primary insomnia.