Melatonin is a hormone produced by the pineal gland in the brain. It is released in response to darkness and helps to regulate sleep-wake cycles. Melatonin levels rise in the evening and fall in the morning, helping to promote sleepiness at night and wakefulness during the day.
The biological clock, or circadian rhythm, is a 24-hour cycle that regulates many bodily functions, including sleep-wake cycles, body temperature, and hormone levels. Melatonin interacts with the biological clock by helping to synchronize it with the day-night cycle.
Exposure to light can suppress melatonin production, while darkness promotes its production. This is why it is important to avoid bright light in the hours leading up to bedtime, as this can make it more difficult to fall asleep.
Melatonin can also be taken as a supplement to help improve sleep quality. However, it is important to talk to a doctor before taking melatonin supplements, as they may interact with other medications.
