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.

Long-term melatonin was use associated with heart failure, according to a new study. But there's more to the story.