Beth Skwarecki is Lifehacker’s Senior Health Editor. She has a bachelor’s degree in biology, has written two books, and is a certified personal trainer. She’s been writing about health, fitness, and ...

Toning your arms may be one of your aesthetic goals. But you should not aim to have toned and strong arms just because they look good. They are essential in making daily tasks like lifting and ...

BUILDING UP YOUR body isn't as complicated as you might think. Over-involved fitness routines might have discouraged you from taking to the gym in the past—but if you're ready and willing to put the ...

Arm exercises with weights are are a guaranteed way to build upper-body strength, but which ones should you go for? Whatever your fitness MO - whether you're an avid gym workout lover or home-workout ...

If you're looking to build a strong upper body, you can't go wrong with dumbbell arm workouts. Dumbbells are simple, easy to use, and versatile. With the right weight, a solid selection of dumbbell ...

The core gets a lot of attention when it comes to aesthetics. But your torso muscles—which include your abs, back, glutes, and hip flexors—play a crucial role in running that goes way beyond looks.

The dumbbell chest fly is an exercise that can help to strengthen the chest and shoulders. It’s common to do it while lying on your back on a flat or incline bench. There’s also a dumbbell fly ...

What are adjustable dumbbell weights? The concept of customizable dumbbells isn’t new. In fact, I grew up with an old-school steel set in my household—you know, the type where you screw on the plates ...