"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 ...

Rest assured, the hype is real. Hypertrophy is, by definition, the enlargement of an organ or tissue from the increase in size of its cells. Not to be confused with hyperplasia, the process of ...

Hypertrophy; you hear the term bandied about constantly on Instagram, and it's likely the reason you started lifting weights in the first place, but what does it actually mean? The scientific term for ...