If you take certain medicines for high blood pressure, abnormal heart rhythms or allergies, you may need to avoid grapefruit. Find out why and see examples of medicines that you shouldn't mix with grapefruit.

Bloom, magic mint, black mamba—these are some of the street names used to describe bath salts, salvia and spice. If you're a parent, it's worth your time to learn more about these drugs. Here's a primer.

People at risk for fractures are often urged to take calcium and vitamin D supplements. But a new study suggests that they might not be getting the benefits they hoped for.
If you're using supplements for bone health, this is something to talk to your doctor about.

What's the healthiest diet you can eat?
It's a tie, according to U.S. News & World Report.
Find out which diets won.

Stop smoking medicines can help people kick the habit.
But they may not work all that well on their own, according to a study.
Find out what else you need to do to boost your chances of giving up smoking for good.