AP BIOLOGY

Detailed explanation-1: -Melatonin, often referred to as the sleep hormone, is a central part of the body’s sleep-wake cycle. Its production increases with evening darkness, promoting healthy sleep and helping to orient the body’s circadian rhythm.

Detailed explanation-2: -The hormone melatonin plays a role in the sleep-wake cycle. Natural levels of melatonin in the blood are highest at night. Some research suggests that melatonin supplements might be helpful in treating sleep disorders, such as delayed sleep phase. They also may provide some relief from insomnia and jet lag.

Detailed explanation-3: -Melatonin plays an important role in regulating human sleep. Administration of sustained-release or transdermal formulation melatonin reduces sleep latency, increases total sleep time, and improves sleep maintenance [12, 13].