Melatonin Use Linked to Increased Cardiovascular Risk, Study Suggests

For many struggling with insomnia, melatonin supplements have become a popular sleep aid. However, emerging research suggests a potential link between prolonged melatonin use and an increased risk of cardiovascular issues, including heart failure, hospitalization, and even mortality.

Study Findings

A study presented at a meeting of the American Heart Association in New Orleans examined the health records of 130,828 adults diagnosed with insomnia for over five years. The research found that individuals with prolonged melatonin use – defined as 12 months or more – had a nearly double the risk of developing heart failure over a five-year period compared to non-users (4.6% versus 2.7%, respectively).

Participants taking melatonin were also 3.5 times more likely to be hospitalized for heart failure (19% versus 6.6%) and almost twice as likely to die from any cause (7.8% versus 4.3%) compared to those who did not take melatonin over the same timeframe.

Expert Commentary

Infectious disease specialist Matteo Bassetti highlighted the study’s findings, emphasizing the demand for caution regarding long-term melatonin use. Bassetti clarified that while the results raise safety concerns, they do not definitively prove that melatonin causes heart failure. He stressed that the data indicates an association, not a direct causal relationship.

Melatonin: What You Need to Understand

Melatonin is a hormone naturally produced by the brain to regulate the sleep-wake cycle. It is not a traditional sleeping pill and does not force sleep, but rather helps to restore the body’s natural circadian rhythm.

Recommendations and Considerations

Experts recommend that melatonin be used for short-term sleep disturbances. Great sleep hygiene practices – such as maintaining a dark, quiet bedroom, establishing a regular sleep schedule, and limiting screen time before bed – are considered safer and more effective long-term strategies for improving sleep.

Individuals with pre-existing cardiovascular conditions or other risk factors should consult with a healthcare professional before using melatonin supplements, especially for extended periods.

Key Takeaways

• Prolonged melatonin use may be associated with an increased risk of heart failure, hospitalization, and mortality.
• The study observed an association, but did not prove causation.
• Melatonin is best used for short-term sleep issues.
• Good sleep hygiene is a safer long-term solution for sleep problems.
• Individuals with heart conditions should consult a doctor before using melatonin.