Ever wonder why some people seem to pack on muscle effortlessly while others spend months in the gym with little to show for it? Muscle growth isn't just about lifting weights -- it's a complex ...

So many people want bigger biceps but don't know how to grow them. Here's what actually works.

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 ...

This protein is swimming with muscle-building benefits.

"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 ...

When somebody says a workout will make you toned, they usually mean something else—it's a word to sell an aspiration of being ...

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 ...

Changing your rep range and your workout intensity can help you build more muscle, says an exercise scientist with decades of ...

Aging changes how you train, but it doesn’t eliminate your ability to grow. A top coach explains what needs to shift in your 50s.

A new study asked three questions about muscle protein synthesis in response to a nine-day diet and weight training regimen: First, does the source of protein - plant or animal-based - make any ...