Melatonin is a natural hormone that’s mainly produced by your pineal gland in your brain. It plays a role in managing your sleep-wake cycle and circadian rhythm.

Feb 25, 2025 · Melatonin may improve sleep, eye health, and seasonal depression. It’s generally considered safe and has few side effects, but is not recommended for children. Melatonin is a …

Nov 8, 2025 · Melatonin plays a crucial role in regulating sleep cycles by detecting light and dark through the retina. It binds to its receptors on the pituitary gland and the ovaries and appears …

What is melatonin and how does it work? Melatonin is a hormone that your brain produces in response to darkness. It helps with the timing of your circadian rhythms (24-hour internal …

Aug 13, 2025 · Melatonin is a hormone in your body that plays a role in sleep. The production and release of melatonin in the brain is connected to time of day, increasing when it's dark and …

Mar 31, 2025 · Melatonin is a naturally occurring hormone produced by a gland in the brain. It regulates your circadian rhythm (the body's natural 24-hour internal clock) and helps with sleep.

Sep 13, 2024 · It helps your body know when it's time to sleep and wake up. Normally, your body makes more melatonin at night. Levels usually start to go up in the evening once the sun sets. …

Dec 9, 2025 · Melatonin helps regulate sleep-wake cycles and may have benefits for insomnia and jet lag. Short-term use is safe, but long-term effects need more study.

Jun 20, 2025 · Melatonin is commonly known as the body’s natural sleep hormone and plays a central role in regulating circadian rhythms, which control the natural cycle of sleep and …

Aug 1, 2025 · As an indoleamine with a long evolutionary history, melatonin's physiological functions have evolved from its initial role in regulating skin pigmenta…