YOU WANT (AND need, for so many reasons!) to build more muscle. But you’ve hit the gym and piled up reps and sets of everything from biceps curls to pushups and burpees, and you still don’t have the ...

"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 ...

You don't need marathon sessions if you're training with intent ...

"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 ...

Strength training for a marathon helps you prevent injury and chase faster miles, but can you actually build muscle in the process? While it’s technically possible to build muscle while running many ...

Alan Ritchson has one of the most in-demand workout routines on the internet. When he revealed a sample session he uses to ...

You might have seen your favorite Instagram trainer mention hypertrophy on her strength training posts. Or maybe you heard the term in a fitness class or while ...

Fitness after 40 can still build muscle effectively through gentle, safe strength strategies. Focus on progressive resistance ...

If the focus on heavy doesn't suit you, try this approach instead.

Want to know whether walking can actually build muscle? We asked the experts. Plus, how to get the most of your walking workout.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There are a lot of reasons to head to your local barre studio and try out a class. Among a long list of ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." YOU WANT (AND need, for so many reasons!) to build more muscle. But you’ve hit the gym and piled up reps ...