Could Melatonin Be Silently Harming Your Heart?

Melatonin and Heart Health

Researchers have found a surprising link between long-term melatonin use and heart failure in patients with chronic insomnia.

A study of over 130,000 adults with insomnia revealed that long-term melatonin use, defined as a year or more, was associated with a nearly doubled risk of developing heart failure.

Marketed as nature’s sleep switch, melatonin has become a nightly habit for millions.

Author's summary: Melatonin may harm heart health.

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Discover Magazine Discover Magazine — 2025-11-04

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