"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 ...

Here's what this means for your next workout.

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 ...

Just put in a good effort and do it regularly.

Building muscle remains one of fitness culture’s most misunderstood pursuits. Despite countless hours spent in gyms across America, many people struggle to see meaningful changes in their physiques.