Melatonin Use Associated with Heart Failure Risk
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Recent research indicates a potential connection between melatonin, a popular sleep aid, and a higher risk of heart failure. However, experts are urging caution, emphasizing the need for further investigation into these findings.
The American Heart Association is set to present data from a preliminary study at the American Heart Association’s Scientific Sessions 2025, scheduled to commence on November 7. According to a press release from the association, the study suggests that prolonged use of melatonin may be linked to a 90% increase in the risk of heart failure, alongside an elevated possibility of hospitalization or fatality due to heart failure.
Lead author of the study, Dr. Ekenedilichukwu Nnadi, who serves as chief resident in internal medicine at SUNY Downstate/Kings County Primary Care in Brooklyn, N.Y., highlighted the significance of these findings. He expressed concern over the assumption that melatonin supplements are entirely harmless, emphasizing the potential impact on patient counselling regarding sleep aids.
The study analyzed health records spanning five years for over 130,000 adults dealing with insomnia who had used melatonin continuously for at least 12 months. Shockingly, the results indicated a 90% heightened risk of heart failure over a five-year period compared to individuals who had not used melatonin.
Nevertheless, while the outcomes of the study are thought-provoking and warrant attention, Dr. Muhammad Rishi, an associate professor of clinical medicine and spokesperson for the American Academy of Sleep Medicine, underscored that the observational nature of the study, reliant on electronic health record data, limits its ability to establish causality.
Melatonin, a natural hormone essential for regulating the sleep cycle, is widely embraced as a sleep aid, particularly among children. The potential repercussions of poor sleep on heart health were highlighted by Joyce Oen-Hsiao, an associate professor of cardiovascular medicine at Yale School of Medicine, who suggested that insomnia could be a contributing factor to heart failure.
Dr. Nnadi, the study’s lead author, acknowledged the complexity of the situation, pointing out that various factors such as severe insomnia, mental health conditions like depression or anxiety, and the usage of other sleep-enhancing medications might be interconnected with both melatonin use and the risk of heart issues.
While the association found between melatonin use and heart risk raises concerns about the safety of this commonly used supplement, Dr. Nnadi emphasized the need for further research to definitively ascertain melatonin’s impact on heart health.
In conclusion, the potential correlation between melatonin use and heart failure risk underscores the importance of thorough investigation and comprehensive understanding of the implications of long-term use of this popular sleep aid. Patients are advised to consult with healthcare professionals before making any changes to their sleep aid regimen, bearing in mind the evolving landscape of research in this area.
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