Melatonin

Definition:

Melatonin is a hormone produced naturally by the pineal gland in the brain. It plays a crucial role in regulating sleep-wake cycles and is involved in numerous physiological processes related to sleep and circadian rhythms.

Functions of Melatonin:

• Promotes Sleep: Melatonin helps regulate the sleep-wake cycle by promoting the onset of sleep and maintaining sleep duration. It is often referred to as the “sleep hormone.”
• Regulates Circadian Rhythms: Melatonin regulates various biological functions that follow a 24-hour cycle, such as hormone secretion, body temperature, and blood pressure.
• Antioxidant Properties: Melatonin acts as a powerful antioxidant, protecting cells from oxidative damage caused by free radicals and other harmful molecules.
• Immune System Regulation: Melatonin influences the immune system by enhancing the production and activity of certain immune cells, thus playing a role in immune response and defense against infections.
• Jet Lag Alleviation: Melatonin supplements are commonly used to alleviate the symptoms of jet lag, as they help adjust the body’s internal clock to the new time zone.

Sources of Melatonin:

While the pineal gland is the primary source of melatonin, small amounts of melatonin can also be found in various foods such as cherries, tomatoes, walnuts, and grains. Additionally, melatonin supplements are available for those with sleep disorders or in need of temporary assistance in regulating their sleep patterns.

Disclaimer:

This definition serves as a general overview of melatonin and should not be considered medical advice. Consult with a healthcare professional for personalized guidance regarding melatonin supplementation or sleep-related concerns.