Long-Term Melatonin Use Linked to Increased Heart Risk, New Study Suggests

A recent medical analysis has raised concerns about the long-term use of melatonin, one of the most commonly used sleep supplements worldwide. While melatonin is widely regarded as safe for short-term use, researchers now warn that extended use may be associated with a higher risk of heart-related problems, including heart failure.

The study tracked tens of thousands of adults who regularly used melatonin for insomnia or other sleep disorders. Findings indicate that individuals taking melatonin for more than a year faced a significantly increased risk of heart failure and related hospitalizations compared to those who did not use the supplement. Additionally, long-term users showed a higher rate of all-cause mortality over the study period.

Melatonin is a hormone naturally produced by the brain to regulate sleep-wake cycles. It is available over the counter in many countries and is often taken without medical supervision. Experts caution that while occasional use is generally safe, daily intake over extended periods could pose health risks, particularly for people with underlying cardiovascular conditions.

Medical professionals also emphasize that lifestyle factors and underlying health issues may contribute to the observed risks. Poor sleep patterns, stress, or pre-existing heart conditions could interact with melatonin use, potentially exacerbating cardiovascular problems.

Researchers advise individuals who rely on melatonin to:

Limit usage to short-term periods unless advised otherwise by a healthcare provider.
Address underlying sleep problems with non-pharmacological methods such as improved sleep hygiene, regular schedules, and stress management.
Consult a doctor before using melatonin long-term, especially if they have heart disease or other chronic health conditions.

While the supplement remains popular and effective for many, this study highlights the importance of caution with long-term use. Ongoing research is needed to fully understand the relationship between melatonin and cardiovascular health, but the current evidence suggests that moderation and medical guidance are key.