You might be surprised how much you're already hitting this valuable muscle group. Here's how to avoid going overboard ...

You might be surprised how much you're already hitting this valuable muscle group. Here's how to avoid going overboard.

It’s never too late”—a trainer says these three exercises can help over-40s build the strength and muscle they need to age ...

Swap long gym sessions for 7 quick standing moves that boost strength, balance, and calorie burn for adults over 45.

With the help of A.I., a historian has identified the killer in a 1941 image that defined the savagery of the Nazi regime.

If you want monster pecs and huge arms, we've got the exercises to make it possible.

Jessica Biel, star of The Better Sister, has shared the back and arms exercises that caught viewers’ attention almost as much as the show’s gripping storyline.

Get step-by-step instructions for shoulder exercises targeting the deltoid to improve shoulder stability, increase strength, and build muscle mass.

Jessica Biel and trainer Ben Bruno break down her full arm and back moves used to prep for 'The Better Sister' ...

Whether it’s to improve your strength, boost confidence, or sculpt muscle, strengthening your arms does more than make you look powerful—it also helps you move through life with ease. From lifting ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." FROM THE MOMENT that many guys pick up a weight for the first time, their primary goal is to build our ...