Insomnia is very common in clinical practice, and insomnia is a disease in itself and a common complication of other diseases. Insomnia is generally defined as insufficient sleep time or decreased sleep quality. The hazards caused by insomnia mainly include: 1. decreased work efficiency, symptoms such as drowsiness, dizziness, fatigue and exertion; 2. increased blood pressure; 3. longer insomnia can lead to mood changes by insomnia symptoms, including anxiety or depression, and even the occurrence of other mood disorders; 4. insomnia in some patients is related to cognition and memory, and is associated with brain malfunction is related. Prolonged insomnia, it is recommended to seek medical attention as soon as possible. Prolonged poor rest may cause systemic diseases, and multiple systemic diseases compounded together may cause other problems. Insomnia is currently the most common and fastest way to take Western drugs, mostly sedative-hypnotic drugs, such as Valium, Zopiclone, Synthroid. These drugs are more effective in treatment, but there are side effects. The specific medication should be combined with clinical, to the doctor’s face to face guidance shall prevail.