Get ready for the ultimate pump.

These small technique tweaks can make a big difference ...

Discover if your upper body power ranks among the top tier for your age group with this simple, science-backed longevity test. Functional strength is the ultimate indicator of how well you’ll maintain ...

Walk into any gym and you’ll see a parade of bicep exercises. Standing curls. Seated curls. Cables. Machines everywhere. With ...

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 ...

Whether you're looking for raw strength or pure size, the spider curl provides the constant tension to get you there ...

This not only tones the biceps but also improves overall arm coordination and power. Rope skipping is a common activity in many African communities as it requires minimal equipment and offers a great ...

It is what the fitness enthusiasts call a muscle pump. This temporary swelling happens when blood rushes into the working ...

For fitness purposes we can roughly divide the body into three sections: the lower body (legs), the core (abs), and upper body (everything from the chest up including arms, shoulders, and back—but not ...

If your arm day consists of bicep curls on bicep curls, it might be time to switch things up and throw some bicep curl variations into the mix. Doing slightly different takes on the staple exercise ...

It's easy to focus on biceps and triceps exercises during my upper-body workout. Sometimes I even throw in some back moves. But my go-to arm routine was missing a major muscle group: rear deltoids.