Millions of Americans take melatonin as if it were a harmless nightly sleep pill, but doctors warn that this habit may not be ...

Stock image of a woman using melatonin. Melatonin may have negative impacts on the heart, new research says — but experts caution not to toss the popular sleep aid just yet. Long-term melatonin use ...

Adults with insomnia who used melatonin for a year or more were more likely to be diagnosed with and hospitalized for heart ...

If you’ve ever struggled getting to sleep, chances are you’ve turned to melatonin supplements to help. And you’re certainly not alone: data on melatonin use collected as part of the National Health ...

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"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." We all know what it’s like to run on too little sleep, and many people with chronic or occasional sleep ...

A study that reviewed health records for tens of thousands of adults with chronic insomnia found that people who took prescribed melatonin for more than a year had a higher chance of heart failure ...

An over-the-counter sleep aid may put some users at higher risk for heart failure and death. In a preliminary study of adults with insomnia, researchers found as association between long-term ...

(CNN) — More and more adults are taking over-the-counter melatonin to get to sleep, and some may be using it at dangerously high levels, a study has found. The overall use among the US adult ...

WASHINGTON — Don’t lose sleep over headlines linking melatonin to heart failure. That’s the message after some scary-sounding reports about a preliminary study involving the sleep-related supplement.