Which exercises are most effective for your pecs? What to know.

To build muscle mass, you need around 0.5–0.9 grams of protein per pound of body weight per day. Here's why and other factors to consider.

It might be more than you think.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." YOU'VE PROBABLY HEARD big guys at the gym tossing around the word "hypertrophy" when they talk about ...

Plus, exactly how to train to sculpt your muscles.

Some workouts leave you buzzing, muscles pumping, and energy on high. Others leave you wondering if you made any progress at all. The difference often comes down to more than just the weight on the ...

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. Starting a new strength training program? Here's what you need to know about how long it takes to build muscle. When it comes to ...

Can you build muscle while you are eating fewer calories to lose fat and excess weight? Learn what may help meet your goals.

What's a typical rate of muscle gain? Every body responds a little differently to strength training, so the short answer is “it depends." One review of research on how resistance training impacts ...

Building muscle after 50 is essential for feeling strong and healthy. While you’re perfecting your strength training routine and making sure to eat enough protein, you might wonder: How long does it ...

Here's how muscle growth, or hypertrophy, works and four ways to optimize hypertrophy including nutrition and resistance ...