It might be more than you think.

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 ...

Muscle growth isn’t just about lifting weights, explained Justin Kraft, C.P.T., founder and trainer at Aspire 2 More Fitness. “It has three major contributors: strength training, proper nutrition, and ...

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Laura Schober is a writer and editor specializing in health, food, wellness, beauty, and lifestyle content. Laura is also a seasoned communications professional who has previously worked in the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Achieving strong, defined arms or legs is about more than just lifting weights. A ton goes into growing ...

Achieving strong, defined arms or legs is about more than just lifting weights. A ton goes into growing your muscles—and that includes proper nutrition, recovery, and working out in a specific way.