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. You probably work your ...

Get ready for the ultimate pump.

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

The forearms are often overlooked in training, but they play a crucial role in grip strength, wrist stability, and overall arm development. Exercise scientist Milo Wolf ranked the best and worst ...

These are the moves that will build the upper body strength and size you want.

YOUR ARM WORKOUTS are, more than likely, focused on two very important muscles: the biceps and triceps. These big muscles take up the front and rear of your upper arms, respectively. They're notable ...

You have 20 muscles in your forearm, the part of your arm between your elbow and your hand. They help you move your arms, hands, and fingers and perform many of the tasks of daily life. You can strain ...

Trainers explain why strength training isn't just for muscles.

A certified trainer shares an 8-minute routine targeting arm flab after 55 — no weights needed to tighten and firm bat wings fast.

Of all the moves that can improve poor posture, arm stretches may be your least likely guess. But it’s all connected. The arms are attached to the shoulders that you slump over your computer while ...

These are the best ones, according to fitness experts and weight loss specialists.

You might come up short when you search for the best arm workouts for women. While strength training for women has become ...