"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." TO MAKE THE arm muscle gains you want, you'll need to be intentional. Following a balanced workout split ...

CNN — (CNN) — While there is no magic bullet for gaining strength, variety is key. To that end, although classic bicep curls often take center stage for building arm strength, another arm exercise ...

Arm fat can be particularly frustrating. It’s often one of the last areas to respond to diet and exercise, and the first place to show when we gain weight. Whether you’re concerned about upper arm ...

So many people want bigger biceps but don't know how to grow them. Here's what actually works.

Feeling sore after a workout is known as delayed onset muscle soreness (DOMS). Sore muscles after exercise are a result of muscle breakdown during a workout, particularly on the eccentric portion or ...

Chair exercises for arms over 50, try 5 expert-approved moves to firm triceps and shoulders with trainer guidance.

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 ...