Melatonin supplements are sold as sleep aids over the counter in the U.S. Some years ago, pediatrician Dr. Judith Owens noticed a disturbing pattern. A professor of neurology at Harvard Medical School ...

Melatonin supplements have grown in popularity for promoting higher-quality sleep. Melatonin is a naturally produced hormone in the body that helps regulate sleep, increasing during hours of darkness ...

Long-term use of melatonin supplements may be linked with a higher risk of heart failure, according to new research — but does that mean people taking it as a sleep aid should stop using it now? In a ...

Long-term melatonin use for sleep problems may come with unexpected heart dangers. Researchers found that chronic users were almost twice as likely to die and 3.5 times more likely to be hospitalized ...