A recent study examining health records of tens of thousands of adults with chronic insomnia found that individuals prescribed melatonin for over a year had a higher risk of heart failure within five years compared to nonusers, according to the American Heart Association.
The study has not yet undergone peer review and has sparked diverse opinions among sleep medicine specialists and cardiologists. Experts warn against drastic changes in melatonin use and emphasize the need for further long-term research.
"People and health care providers should not make drastic changes despite this study," said experts reacting to the findings.
These preliminary results contrast with prior studies suggesting melatonin could benefit those with heart failure. The findings come from a research abstract scheduled for presentation at the American Heart Association’s Scientific Sessions, a major cardiovascular medicine conference.
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This early research highlights a potential association between long-term melatonin use and heart failure risk but experts advise caution and emphasize the need for more thorough investigation before drawing conclusions.