Melatonin

Definition

Melatonin is a hormone produced by the pineal gland in our brain that regulates sleep-wake cycles. It plays a crucial role in setting our internal body clock (circadian rhythm) which affects sleep patterns.

Related terms

Circadian Rhythm:

Circadian rhythm refers to our biological processes that occur over approximately 24 hours and are influenced by environmental cues such as light and darkness. It affects many physiological functions including sleep patterns.

Pineal Gland:

The pineal gland is a small endocrine gland located deep within our brain. It secretes melatonin and plays a crucial role in regulating sleep-wake cycles.

Sleep-Wake Cycle:

The sleep-wake cycle, also known as the circadian cycle, is the regular pattern of sleep and wakefulness that occurs over a 24-hour period.