STRENGTH TRAINING CAN become monotonous, especially once you've been lifting for a long time. Rep after rep of the same few exercises can get boring—and when it does, sometimes exercisers can get a ...

The arms are one group of muscles you can always rely on to make you look strong, with or without a shirt on. Big, defined ...

Let’s be honest, we're all a fan of upper body day because everyone wants big arms. No, more specifically, big biceps. However, if you’ve been endlessly curling dumbbells and your t-shirt sleeves ...

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 ...

Get step-by-step instructions for chair exercises for arms that build strength, improve mobility, and support everyday ...

The Biceps Curl is one of the most universally recognized weight training exercises of all time. It's a common reference in pop culture, particularly if the character is depicted as a "gym rat." But ...

Either standing or seated, grab a dumbbell in each hand and let your arms hang almost completely straight at your sides, ...

What it does: The dumbbell bench press is a compound exercise that builds strength and size in your pectoral (chest) muscles.

In men, muscular arms are often seen as a status symbol. However, many women also desire toned upper arms. The good news: ...