You want to build up your physique—but there's a line between well-pumped and overdone. Here's what you need to know.

"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 ...

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How long does it take to build muscle is not, of course, a question with a simple answer, despite what the TikToks or Reels promising to unlock the one thing you need to get big might suggest. In fact ...