The pineal gland in the brain produces the sleep hormone melatonin in response to darkness. Melatonin helps regulate the body’s circadian rhythm, which is the internal process that involves the ...

Well-known for its role in the sleep-wake cycle, melatonin is now being studied for its pro-aging properties. As humanity continues to search for the elusive fountain of youth, one intriguing area of ...

Share on Pinterest New research finds that U.S. adults took twice as much melatonin for sleep in 2018 than they did a decade before. stock_colors/Getty Images A good night’s sleep is essential for ...