Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

With so much focus on the upper body and core, it's easy to forget to tone your back muscles. After all, you want to look ...

No gym? No problem. Bodyweight exercises are an excellent way to train your back muscles when your access to weights is limited or you’re looking for a way to change up your workouts. Using your body ...

MOST THINGS WE do are forward-facing. We walk forward, reach forward, bend forward—of course, because we primarily see in front of us. That’s caused us to put an emphasis on the aesthetics of the ...

When it comes to upper-body day vs lower-body day at the gym, everyone has a favorite, right? But whether you look forward to squats and deadlifts or push-ups and bicep curls, the key to a balanced, ...