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. Melatonin plays other important roles in the body beyond sleep. Naturally, Melatonin is a hormone made by the penial gland, a gland in the brain. It is helpful in treating jet lag. Regulates sleep-wake cycle. Promotes relaxation of the body. It is used in migraine. It has an anti-hypertensive effect and maintains blood pressure. It may help increase growth hormone levels in men.

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