"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 ...

Add Yahoo as a preferred source to see more of our stories on Google. At the same time, influencers with enviably muscular bodies on social media are touting the benefits of athletic-style training ...

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 ...

Stop obsessing over whether you did 8 or 12 reps; a groundbreaking new study proves that your level of effort matters far ...

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 ...

If the focus on heavy doesn't suit you, try this approach instead.

Ever since man first picked up heavy things and put them down again, the debate has endured: Heavy weights vs high reps. Is lifting lighter weights for high reps or heavier weights for low reps better ...