Post by : Saif Rahman

Melatonin is a hormone produced by the brain that helps signal the body when it’s time to sleep. Many people rely on over-the-counter melatonin supplements—often sold as easy-to-take gummies—to help with sleep. Though commonly perceived as safe, recent research has prompted questions about the effects of extended use.

A study highlighted at the American Heart Association examined more than 130,000 adults and found that long-term, regular melatonin users had a markedly higher chance of heart failure and premature death. The analysis reported that frequent users experienced about a 90% greater likelihood of heart failure compared with non-users.

The findings have alarmed some habitual users. NHS surgeon Dr. Karan Rajan cautioned that the association does not automatically mean melatonin directly damages the heart. He explained that sleep disturbances are common in people with early cardiac disease, and such individuals may turn to melatonin, making use a possible indicator of existing illness rather than the root cause.

Dr. Rajan noted that chronic insomnia and stress-related sleep problems are themselves linked to increased cardiovascular risk. Because these groups are more inclined to take sleep aids, the observed connection in the study could reflect underlying health issues instead of a causal effect from melatonin.

Another concern he raised is dose size. The body’s natural nightly melatonin output is around 0.3 milligrams, yet many commercial supplements contain 3, 5 or even 10 milligrams. That means some people consume doses 100 to 1,000 times higher than physiological levels. He warned against treating melatonin as harmless merely because it is natural or sold like candy.

Dr. Rajan advised against continuous, nightly use of melatonin over long periods. He recommends taking the smallest effective dose for short periods and seeking medical advice if sleep problems persist rather than relying on supplements alone.

Health professionals also suggest non-pharmaceutical approaches to improve sleep: keep a consistent bedtime, limit screen time before sleep, avoid late-day caffeine, and create a tranquil bedroom environment.

Experts stress that the new findings do not prove melatonin is universally dangerous but underline the need for cautious, informed use. Regular dependence on melatonin to fall asleep may point to an underlying health condition that warrants clinical evaluation.

This summary is based on publicly shared medical comments and social media discussion of the study. The observational findings remain under review, and further research is required to clarify the relationship.

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