Adults suffering from insomnia who had been using melatonin for a year or more had 90% higher odds of heart failure, researchers found in a new study.

Adults suffering from insomnia who had been using melatonin for a year or more had 90% higher odds of heart failure, researchers found in a new study.

People who used the supplement daily for more than 12 months had worse health outcomes than those who didn't use the supplement.