A recent study presented at the American Heart Association's scientific meetings has raised alarms over the use of melatonin, a popular sleep aid in the UK. The study suggests that long-term melatonin users may face a threefold increase in the risk of heart failure.

Melatonin has been widely prescribed for sleep issues in the UK for nearly two decades. However, the study, based on electronic health records of around 130,000 adults, emphasizes that the findings indicate an association rather than a direct cause of heart failure.

With the study's preliminary nature and reliance on incomplete data, experts urge caution. While previous studies have hinted at melatonin's potential protective benefits for heart health, further research is essential to draw definitive conclusions about its long

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