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 arm extends from the shoulder to the wrist, including the upper arm and forearm. Different muscles may work together in intricate ways to help the arm, wrists, fingers, and hands function. Knowing ...

I consider myself well-versed in fitness lingo and have tried more workout classes than I can count — everything from standard bootcamp cardio classes and traditional Pilates to acrobatic aerial yoga ...

When it comes to bodily attractiveness, certain muscle groups are considered more desirable than others. In an Evolutionary Psychology study, for instance, more than 500 heterosexual women rated the ...

Bicep tendonitis is usually caused by overloading and overusing the biceps tendon. The primary function of your biceps is elbow flexion and turning your palm up. Biceps tendonitis symptoms can include ...