Standing exercises to build upper body strength after 50, guided by a certified trainer, to improve posture and muscle tone.

We live in a muscle-obsessed culture. If you train smart and hard, you don't need to spend every day in the gym, though. Build your upper body with chest presses, rows, lateral raises, bicep curls, ...

Seated upper-body exercises after 60, with expert quotes, to build strength safely using bands and light dumbbells.

You don’t need endless gym hours to see results. This efficient upper-body workout targets chest, back, arms, and shoulders ...

Use these five dumbbell exercises to build your back and biceps muscles without a pull-up in sight. We know there are plenty of pull-up variations you can try to suit your current ability if you don't ...

Repeated exercise, or wasting, can change the way key genes work.

Muscle-on-chip systems are three-dimensional human muscle cell bundles cultured on collagen scaffolds. A Stanford University research team sent some of these systems to the International Space Station ...

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 ...

After sitting most of the day at a desk, where I may or may not have the best posture, my chest and upper back are tight and achy. Maybe you can relate? Luckily, that's where upper-body stretches come ...

Leoni Jesner is a fitness, health, and lifestyle writer who has contributed to Byrdie and LIVESTRONG.com, among other publications. She is also a personal trainer, mat Pilates instructor, and ...