Melatonin tablets are effective, melatonin is effective in delaying aging and adjusting sleep. Melatonin is an endogenous hormone drug that can mediate the endocrine function of the human body, and can play a skin care and skin care effect, and melatonin can also have a certain effect on improving sleep, it is mainly able to shorten the time that patients wake up before going to bed, speed up the patient to fall asleep, improve the quality of sleep, and can also make the number of awakenings in sleep significantly reduced, deepen the depth of deep sleep, so that light sleep stage becomes shorter and the patient’s threshold for arousal in the morning decreases. In the clinical improvement of sleep, melatonin is mainly used to adjust the function of jet lag, but it is not recommended for long-term application of melatonin to adjust sleep, because melatonin after all belongs to the endogenous hormone-like drugs, long-term application of some female patients may appear endocrine dysfunction.