Melatonin is a common sleep supplement. If you're wondering whether it’s safe to take melatonin every night, read what the pros have to say about it.

Melatonin supplements have become a ubiquitous sleep aid, but research shows that benefits are modest, and the heart health ...

A new clinical trial explored whether raising cellular NAD⁺ levels with high-dose nicotinamide riboside could influence lingering neurological and physical symptoms in long-COVID. Millions of people ...

Millions of people worldwide continue to experience lingering symptoms after COVID-19, a condition known as long COVID. These ...

The study isn't the kind that can prove cause-and-effect — and doctors stress that too little or interrupted sleep by itself ...