Melatonin is a hormone that is naturally produced in the body by the pineal gland, which is located in the brain. It plays a key role in regulating the body’s sleep-wake cycle, also known as the circadian rhythm. Melatonin levels in the body typically rise in the evening and fall in the morning, helping to promote sleepiness at night and wakefulness during the day.
In addition to its role in regulating sleep, melatonin is also involved in other physiological processes, such as immune function and regulation of the reproductive system. Melatonin supplements are sometimes used as a sleep aid, particularly for people who have trouble falling asleep or staying asleep. However, it is important to use melatonin supplements under the guidance of a healthcare professional, as they can interact with other medications and may have side effects.
