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Long-Term Melatonin Use Linked to Heart Failure Risk in Insomnia Study

New study links long-term melatonin use to 90% higher heart failure risk in insomnia patients. Research finds increased hospitalization and mortality with extended melatonin supplement use.

This research matters because melatonin supplements are widely available over-the-counter and commonly used by millions of people seeking better sleep, often under the assumption they're completely safe. The potential connection between long-term melatonin use and serious cardiovascular outcomes like heart failure could have significant implications for public health, given that approximately 6.7 million American adults already live with heart failure. For individuals relying on melatonin for sleep management, these findings suggest the need for more cautious use and consultation with healthcare providers, especially since supplements aren't regulated for purity or strength in the U.S. The study highlights the importance of proper medical guidance for sleep disorders rather than self-medicating with widely available supplements that may carry unrecognized health risks.