What is Melatonin?

Melatonin is a hormone found naturally in the body. Animals, plants, fungi and even bacteria all have melatonin, and it plays a different role in each species.
Melatonin is released by darkness while bright light supresses melatonin. Melatonin regulates circadian rhythms, which is a factor in sleep timing and blood pressure regulation. Melatonin is present in the nervous system where it plays a role as a powerful brain antioxidant and immune system modulator.
Melatonin count peaks in early childhood and declines with age. Among elderly people, no matter how healthy, the frequency of sleep disorders is high. There is association between sleep disorders and impaired Melatonin production.



 Circadian rhythm
Circadian rhythm is your body’s internal clock that follows a roughly 24-hour cycle. It responds primarily to the light and darkness in your environment. It is important in determining sleep-wake cycles and sleep patterns as it releases Melatonin. An abnormal circadian rhythm has been linked to various sleep disorders such as insomnia, and is affected by many daily activities. In order to have a good circadian rhythm, it is important to have proper sleep hygiene, avoid bright lights at night, and/or supplement dietary Melatonin if deficiencies are present.

How does Melatonin work in the body?
Melatonin’s main job in the body is to regulate night and day cycles or sleep-wake cycles. Darkness
causes the body to produce more Melatonin, which signals the body to prepare for sleep. Light decreases Melatonin production and signals the body to prepare to stay awake. People who have trouble sleeping often have low levels of Melatonin.
 
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