Melatonin is a hormone that your brain produces in response to darkness. It helps with the timing of your circadian rhythms (24-hour internal clock) and with sleep. Being exposed to light at night can block melatonin production. Research suggests that melatonin plays other important roles in the body beyond sleep. However, these effects are not fully understood. Melatonin dietary supplements can be made from animals or microorganisms, but most often they’re made synthetically. The information below is about melatonin dietary supplements. What Are The Health Benefits Of Taking Melatonin? Melatonin supplements may help with certain conditions, such as jet lag, delayed sleep-wake phase disorder, some sleep disorders in children, and anxiety before and after surgery. Is Melatonin Helpful For Preventing Or Treating Covid-19?  Current research looking at the effects of melatonin on COVID-19 is only in the early stages. There are a few randomized controlled trials (studies evaluating melatonin in …