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 ...

Adults with insomnia who took this sleep supplement regularly for at least a year had almost double the risk of heart failure, a new study found. A recent study linked long-term use of melatonin ...

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 ...

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 ...