MCQ IN MEDICINE

Detailed explanation-1: -Darkness prompts the pineal gland to start producing melatonin. View Source, while light causes that production to stop. As a result, melatonin helps regulate the circadian rhythm and synchronize the sleep-wake cycle with night and day. In doing so, it facilitates a transition to sleep.

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: -Natural melatonin is an important hormone for regulating your sleep-wake cycle. While several factors can negatively affect how long and how well you sleep, the amount of melatonin your pineal gland is making could be one of them. If you’re having issues with sleeping, be sure to talk to your healthcare provider.