DALLAS, Texas (WTVO) — A new study suggests there might be a link between the use of the sleep aid melatonin and an increased risk of heart failure.

According to a new study by the American Heart Association, a review of 5 years of health records revealed that adults with insomnia who had used melatonin for at least a year had a greater risk of being diagnosed with heart failure, requiring hospitalization for the condition, or dying from any cause.

While the agency said the study did not prove a cause-and-effect relationship, it did raise safety concerns that should warrant further research.

The main analysis found: • Among adults with insomnia, those whose electronic health records indicated long-term melatonin use (12 months or more) had about a 90% higher chance of incident heart f

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