Melatonin and Heart Health
Scientists have discovered a surprising link between long-term melatonin use and heart failure in patients with chronic insomnia.
Melatonin, often referred to as "nature's sleep switch," has become a widely used supplement for millions of people. However, new research presented at the American Heart Association's Scientific Sessions 2025 suggests that it may have unintended consequences on the heart.
- Long-term melatonin use was linked to a nearly doubled risk of developing heart failure.
- It more than tripled the risk of hospitalization for heart failure.
- It nearly doubled the risk of death over a five-year period.
This research is based on a review of over 130,000 adults with insomnia.
Marketed as nature’s sleep switch, melatonin has become a nightly habit for millions.
Author's summary: Melatonin may harm the heart in chronic insomnia patients.
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