What Is Melatonin?

  How the ups and downs of Melatonin affect your snooze time A hormone that’s made by the pineal gland in the brain, melatonin helps control your daily sleep-wake cycles. Your body’s internal clock (also known as your circadian rhythm) influences how much melatonin the pineal gland makes, and so does the amount of light that … Continue reading What Is Melatonin?