Melatonin and Heart Health
Researchers have found a surprising link between long-term melatonin use and heart failure in patients with chronic insomnia.
A recent study presented at the American Heart Association's Scientific Sessions 2025, analyzed data from over 130,000 adults with insomnia, revealing that long-term melatonin use was associated with a significantly increased risk of heart problems.
- Nearly doubled risk of developing heart failure
- More than triple the risk of hospitalization for heart failure
- Nearly twice the risk of death over five years
Marketed as nature's sleep switch, melatonin has become a nightly habit for millions.
Author's summary: Melatonin may harm heart health in insomnia patients.