Plus, exactly how to train to sculpt your muscles.

Follow these four trainer tips to optimize the process.

When you drink a protein shakes doesn't matter as much as how much protein you consume. Here's the latest research and expert ...

It might be more than you think.

Bigger muscles have long been associated with strength, confidence and vitality. Visually, they create a powerful silhouette that signals athleticism and capability, which is one reason muscle ...

Add Yahoo as a preferred source to see more of our stories on Google. Ever skip the gym for a few days… and suddenly realize it's been three weeks? Whether it was work, travel, injury, or life just ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When it comes to weightlifting, people hit the gym for a plethora of reasons. Maybe you want to improve ...

If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it ...