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 ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

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 ...

A yoga instructor shares 12 fundamental stretches you can do every day to move and feel better.

We spoke with experts to craft a research-backed blueprint to build sleeve-splitting biceps and triceps ...