Add Yahoo as a preferred source to see more of our stories on Google. Those stiff, painful spots can take up to two weeks to go away on their own. Sophie Walster/iStock via Getty Images Plus Imagine ...

These tender bumps in your neck or back can be a pain, but a few research-backed strategies can help to relieve discomfort. By Danielle Friedman If you’ve ever had a shoulder massage or used a foam ...

Forget what you’ve heard about "toning" vs. "building"—science proves all muscle is created equal, and your ultimate look ...

A new study explains how a tiny enzyme switch helps muscles make energy during exercise and may even connect to diabetes risk ...

Let’s get one thing straight: Muscle is muscle. Despite what many fitness influencers may have you believe, there’s no such thing as "lean muscle" or "bulk muscle." It’s all made from the same stuff.

If you’re looking for an exercise that builds lower-body and core strength, improves balance, and can be done literally anywhere with no equipment, the reverse lunge delivers. Reverse lunges are ...

Want to put on muscle? Who wouldn’t: It keeps you strong enough to do the things you love now, and it’s a great investment for later, since muscle improves bone mineral density and mobility as you age ...

Plus, studies show that a high-protein diet can help with losing fat and gaining muscle at the same time. Research shows that, while in a calorie deficit, consuming more protein than you normally ...