Squatting is a common exercise that many likely learned in gym class. However, do you know the proper form for a squat and what muscles it works? Ensuring you're doing a squat correctly is essential ...

A comprehensive guide to max out your gains and fill out your shirtsleeves, according to exercise experts.

Your abdominal muscles surround your trunk between the rib cage and pelvis and keep your abdominal organs safe. Your core abdominal muscles also support your trunk and allow movements while keeping ...

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. This is going to get ...

Think of these exercises as a switch that turns on your key muscles, getting them ready for the effort ahead. Don't worry, they won't take much time and you can easily add them to your routine. Let's ...

PEOPLE OFTEN ASSOCIATE building strength with pumping iron, gauging progress by how many plates you can add to the bar, what size dumbbells you can lift, and how low you can set the pin in the machine ...

To grow your muscles, you need to eat more. But new research shows a modest calorie surplus alongside training can help build ...

Much like their name implies, the quadricep muscles were once thought to be a set of four muscles, with the name “quad” translating to “four or fourth” in Latin. However, it has since been discovered ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Achieving strong, defined arms or legs is about more than just lifting weights. A ton goes into growing ...

When you think about muscles, you probably think about the ones in your arms, legs, back or abs. However, muscles do far more than move the body. A muscle is a type of tissue, a group of cells that ...