Elderly people can take melatonin because melatonin secretion gradually decreases as people grow older. Because of the decrease in melatonin secretion, elderly people will also show a gradual decrease in sleep and memory. Therefore, if the elderly have sleep and memory problems, you can appropriate exogenous supplement melatonin. For the elderly also can not just take melatonin, during the period to regularly monitor liver function, kidney function, etc.. If the elderly have a sleep disorder, after oral melatonin did not work, you can be under the guidance of a physician, with some proprietary Chinese medicine or sedative sleeping pills and so on. The elderly oral melatonin period, must pay attention to observe their symptoms of relief, not to trust the health care products. The elderly, as they grow older, will also develop arteriosclerosis, and need regular vascular checks.