Excessive mental activity, regardless of the cause, i.e., chronic internal conflict, persistent adverse emotional factors, tension, and social environmental factors, can lead to insomnia. Insomnia is the most important clinical manifestation of neurasthenia and the main reason for patients to visit the clinic. There are other symptoms of neurasthenia, such as frequent lack of energy, depression, inability to use the brain, memory loss, slow reaction, inability to concentrate in study and work, reduced work efficiency, and inability to eliminate fatigue even with adequate rest. The whole body examination, and no physical diseases such as hepatitis, and no organic brain lesions, such symptoms, you may have suffered from neurasthenia. So to cure insomnia, you must cure neurasthenia. Neurosis is a dysfunctional condition with a wide range of clinical symptoms, but to diagnose the disease, five characteristics should be present: 1. Patients with neurasthenia have significant symptoms of debilitation or persistent fatigue. Such as often feel low energy, depressed, easily excited and easily fatigued. 2, mood swings, easily agitated, irritable, worried and nervous. 3.Tension headache or muscle pain caused by emotional tension. 4.Sleep disorder. It is difficult to fall asleep, easy to wake up, and dreamy. 4.The duration of the disease is more than 3 months. 5.Other neurological and psychiatric disorders are ruled out. The most important diseases to identify are melancholia, anxiety disorder and early schizophrenia.