"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 ...

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 ...

Should you lift heavy weights or use lighter loads with more reps to maximize muscle growth? This question has divided ...

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 ...

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.

Shannon Ritchey, PT, DPT, explains what body recomposition is and how long it takes to lose fat and gain muscle. She also ...

Hypertrophy: Hypertrophy is an increase in muscle mass/size due to an increase in the volume and cross-sectional area (CSA) of individual muscle cells. The increase in cross-sectional area can be ...

Here, five workout mistakes that are holding you back from serious muscle growth—and some simple ways to get right back on ...