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. Arm day can be one of ...

No arm workout is complete without a few exercises for triceps, but that doesn’t mean you need to leave your sweaty prints on every piece of iron in the weight room. In fact, according to top trainers ...

Hit your upper body from every angle.

To build arm size, strength and muscle, you need to lift heavy and you need to lift hard. But there’s another, often underrated, piece of the arm-building equation: time under tension. Your biceps and ...

‘Try my favourite, the one-arm dumbbell triceps extension,’ Zane says in his latest Instagram post. ‘This exercise isolates your triceps, helping build muscle and strength while improving arm ...

Women's Health has launched a four-week dumbbell program designed to build upper body and grip strength, guided by trainer ...

Doctors and fitness experts alike have been raving about the perks of strength-training at every age. But just because you can benefit from strength-training at 50 doesn't mean you should be doing it ...