(Gray News) - The long-term use of melatonin could lead to heart failure, according to the American Heart Association .

A study found that adults with insomnia who used melatonin for at least a year had a 90% higher chance of being diagnosed with heart failure than those with insomnia who did not use melatonin.

The study also determined that participants taking melatonin were nearly 3.5 times as likely to be hospitalized for heart failure.

“Melatonin supplements are widely thought of as a safe and ‘natural’ option to support better sleep, so it was striking to see such consistent and significant increases in serious health outcomes, even after balancing for many other risk factors,” said Dr. Ekenedilichukwu Nnadi, lead author of the study.

Dr. Marie-Pierre St-Onge said she is “surpri

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