You can't 'tone' muscle, so here's what is really happening when you build muscle definition, and why you need to know about ...

Bodybuilding legend and former seven-time Mr. Olympia Arnold Schwarzenegger discussed whether muscle growth stops as we get ...

People who exercise frequently need to ensure they're getting enough protein in their diet. These 10 foods can help—and are ...

“They increase the quality of the muscle you build as opposed to just the size of the actual muscle.” ...

Building muscle has serious perks.

As people age, muscles naturally lose mass and strength, a condition known as sarcopenia. The decline can make everyday ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." As a fitness professional and doctor of physical therapy, I’ve always been active. I spent most of my 20s ...

Challenging the belief that animal protein is the superior type for building muscle, scientists have shown that there is actually no difference in eating meat and dairy or plant sources following a ...

Having different chronotypes, or being more active in the morning vs. afternoon, may play an important role in preserving muscle mass and strength, and metabolic health, according to a new study.

As a fitness professional and doctor of physical therapy, I’ve always been active. I spent most of my 20s chasing the “toned” look (which, for the record, isn’t even a real thing; it’s marketing ...