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 ...

"Bone density or bone mineral density is a measure of the strength and integrity of your bones, specifically their mineral ...

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 ...

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 ...

Men might enjoy a reputation for stoicism, but it turns out, beneath the surface, we're dealing with some pretty severe insecurities. A study conducted by Chapman University on more than 100,000 men ...

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 ...

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

SCULPTING A SET of strong, muscular arms is high among the top priorities guys have at the gym. The big arms ideal is often thought to be a purely aesthetic pursuit—and for some trainees, that might ...

Get ready for the ultimate pump.

Leg day, arm day, ab day—but what about lat day? Lats are the largest muscles in your upper body and the core of any workout routine. Most people use the term lats, but the scientific name for the lat ...

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 ...