You might think you know what it feels like to have sore, tight muscles. But, sometimes, what feels like a muscle ache is actually a more complex problem — one that's related to nerves. "It's much ...

So you want to gain muscle? We love that for you. There's no better feeling than strength. But when you're actively trying to put on muscle, it can be confusing to see the numbers on the scale ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." IF YOU OFTEN have achy biceps after an intense workout or a sore back when you sit for too long, there ...

Muscle and joint pain may overlap, but they can have different causes and treatment approaches. Muscle and joint pain can accompany swelling, stiffness, reduced mobility, and other symptoms. This ...

Muscle knots are highly irritated muscle fibers that have tightened into a ball in one area of your muscle. These painful, tender spots can feel sore and often occur in your upper back, shoulders, or ...