Medically reviewed by Violetta Shamilova, PharmD Key Takeaways Melatonin can help regulate sleep if you have certain sleep disorders. It’s most effective when timed properly, typically 30 minutes to ...

Some studies point to melatonin use as beneficial to heart health, while others say the opposite. Here’s how to make sense of ...

Melatonin typically works in under an hour in most people, though factors such as your physical traits and the type of product used can vary this timing.

Vitamin D influences far more than bones—it interacts with mood, sleep, immunity, and the body’s daily rhythm. Its levels shift with sunlight, seasons ...

In this guide to popular supplements, find out whether magnesium, probiotics, and other products work and what might be ...

This week, learn when to take Vitamin D, the difference between collagen and gelatin, and the best supplements for yourage.

If you want to build healthier habits in 2026, here’s my advice: Give yourself time. New routines don’t stick overnight. A classic study found that it takes on average 66 days of practicing a new ...

Dr. Dasgupta adds that low vitamin D levels can also weaken immunity and increase your odds of muscle injuries and bone ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Keeping all of your medications and vitamins on-schedule for optimal performance can be quite the task, ...

A woman who worked at a daycare in the YMCA of the Fox Cities is charged with neglecting a child after authorities said she ...

Whether you eat them fresh or have them as a juice or smoothie, tart cherries are a great food for promoting sleep, says ...