Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Curls are the classic ...

THE BARBELL BICEPS curl is one of a handful of old-school exercises that retains the hardcore reputation today as it did decades ago, when bodybuilding icons Arnold Schwarzenegger and Lou Ferrigno ...

The preacher curl is a staple exercise when it comes to arms workout. The best part about it is just how easily it can be tweaked in multiple ways for greater or lesser difficulty. Depending on the ...

If you’re training at a full gym with lots of equipment, you may see a rack full of weights that resemble barbells, except they’re shorter with several bends in the middle. This is called a curl bar — ...