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 ...
If toning the back of your arms is a goal, strengthening the triceps can help eliminate that common trouble spot that jiggles when you wave and help you feel more confident. But even more important, ...
If you want to sculpt a killer set of triceps — the muscles on the back of your arms — look no further. These pushup variations are all you need to get moving. Plus, we’ll show you how to perfect your ...
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