Add Yahoo as a preferred source to see more of our stories on Google. Should you really slow down your reps in the gym for muscle growth? Does it really matter how long each rep lasts? You might have ...

Building muscle after 60 doesn’t come down to what you hold in your hands; it comes down to how well you use the muscle ...

When Arnold Schwarzenegger speaks, you listen. The six-time Mr. Olympia has been cutting through gym myths for decades, and this time he’s tackling the slow-rep obsession. Arnold recently made it ...

New research suggests the number of reps you do may matter far less than most people think.