"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 ...

The importance of strength training is well known. But when it comes to how to strength train, the advice can be confusing. Popular workout modalities take vastly different approaches. Low-impact ...

Either way, for success, you will need to approach failure.

"Work smarter—not longer." ...

The rep debate has been raging in gyms for decades. Should you lift heavy for fewer reps? Go lighter for higher reps? Can you even handle more reps and more weight? Researchers and gym bros alike have ...

Weightlifting lore—which is more inclusive than it sounds—dictates that if you’re looking to build size, the smart money is on forcing your muscles to adapt by testing them with increasingly heavy ...

Plus, exactly how to train to sculpt your muscles.

Here's how to get started.

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 ...