"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE WORST THING you can do in the gym? Go through the motions. Use the same weight for the same number of ...

After a two-year plateau, I built muscle within two months ...

Walk into any gym, and you’ll hear conflicting advice about reps. Some trainers swear by heavy weights and low reps. Others advocate for lighter weights and high reps. Your workout buddy might tell ...

Here's what this means for your next workout.

“People get focused on the weight on the bar because of the term ‘load’ in progressive overload,” says Norton, but more reps ...

View post: The One Workout Mistake Most Guys Make in Their 30s and Pay For in Their 40s, According to a Veteran Trainer The rep debate has been raging in gyms for decades. Should you lift heavy for ...

It's a myth that it doesn't matter which you choose—but both have their benefits.

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Ever since man first picked up heavy ...