Step foot in the gym and you'll likely spot two types of lifters: one busting out endless reps with lighter weights, and another lifting heavy loads for considerably less reps. Both have equally ...

Building muscle depends on several factors and isn't something that'll happen overnight after just one workout.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Of course, if you own a pair, you might wonder if you can ditch dumbbells completely and rely solely on ...

This biohacking center is taking “work smarter, not harder” to a whole new level. At Upgrade Labs, members trade dumbbells for data, using cutting-edge technology and AI to tailor every rep, sprint ...

Until recently, that meant relying on the bulky, hefty dumbbells provided at my nearby gym, but that’s no longer the case. I ...

While walking can help develop muscular endurance (a.k.a., your muscles’ ability to sustain exercise for long periods of time ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE PUSHUP IS the do-everything, no-gear exercise for the upper body—and maybe one of the best overall ...