What is melatonin and its role in cognition?

Melatonin is a hormone produced by the pineal gland in the brain that helps regulate sleep-wake cycles. In addition to its role in promoting sleep, melatonin has also been found to play a role in cognition. Research has shown that melatonin may have antioxidant properties that help protect the brain from damage caused by oxidative stress, which is thought to be a contributing factor to cognitive decline. Some studies have suggested that melatonin may improve memory and cognitive function in individuals with cognitive impairments. Overall, melatonin's role in cognition is still being studied, but emerging research suggests that it may have potential benefits for cognitive health.

Melatonin Cognition Sleep Circadian Rhythm Brain Function