If you want big arms, do a biceps curl. If you want even bigger arms in 2025, it's time to build some bicep curl variations into your upper-body workouts. Like your triceps, glutes, and chest, your ...

Despite all the flexing you may see on social media, biceps training—or at least the most effective biceps training—may have suddenly become one of the more neglected splits in common workout routines ...

Your leg muscles are often applauded for doing most of the work on a run. But you’re not just running around with your arms tucked by your sides—at least you shouldn’t be. Instead, your arms swing ...

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. Curls are the classic ...

Bicep tendonitis is usually caused by overloading and overusing the biceps tendon. The primary function of your biceps is elbow flexion and turning your palm up. Biceps tendonitis symptoms can include ...

Not all stretching is created equal. It's important to know which stretches are inadvisable for you, which ones are useful, and when they are appropriate to perform. Dynamic stretches are moving ...

The rotator cuff is a collection of muscles and tendons that keep the bones of your shoulder joint in place. An injury to this group is common, especially in people who work with their arms a lot like ...

Yoga isn’t the only way to improve your posture—exercises that stretch and strengthen your core, back, chest, and neck can help you stand tall and sit up straight.

Arm jiggle exercises after 55, 6 standing moves with CPT guidance to firm arms by training shoulders, back, and triceps.