You can take melatonin for insomnia. Melatonin has a certain effect in regulating sleep, a physiological hormone that exists in the normal human body. The main role is to regulate circadian rhythm, antioxidant, delay aging, and regulate immunity. The peak secretion of melatonin is at 2-3 o’clock at night. Patients with long-term insomnia will have reduced secretion of melatonin, leading to more serious insomnia, so proper supplementation of melatonin can treat insomnia. Melatonin on sleep inversion, more sleep during the day and can not sleep at night, this situation is better treatment, for the adjustment of jet lag caused by insomnia can still. If it is accompanied by significant anxiety, depression and other causes of insomnia, the cause needs to be clarified before symptomatic treatment.