What are your rear delts? Your deltoid muscle, which looks like a large triangle that was placed over your shoulder (the name “deltoid” actually came from the Greek letter “delta,” which is shaped ...

The rear delt fly is one of those go-to moves that you've seen people doing just about every time you've stepped foot in a weight room. It's so popular because it's so simple; the most common approach ...

Ditch the chest-centric bench press and discover the expert-approved routine that targets all three deltoid heads to build a resilient, injury-proof foundation.

If you’re gunning for grapefruit-shaped shoulders, there's a good chance you're crushing overhead presses and gritting your teeth through sets of lateral raises. While these moves undoubtedly build ...

Poor posture is an issue that affects your health just as much as your appearance. Improper posture may lead to back pain, neck pain, headaches, balance issues, and even heartburn and slowed digestion ...

THE REAR DELTS are potentially the most neglected muscles in your upper body. That's too bad, because targeted training of these muscles can unlock the 3D shoulder shape you're likely aiming to ...

Strong shoulders are helpful for an array of exercises and other movements. They play a key part in an athletic physique, making arms look toned and the waist look smaller. Emma Storey-Gordon, a ...

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. Your shoulders are an ...

While there are plenty of machines at the gym that target your shoulders, as well as countless bodyweight exercises like push-ups and planks, one of the best ways to really strengthen those muscles is ...