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. For strong, powerful ...

Ah, hamstrings: the middle child of muscle groups. While they might not be the sexiest parts of our bodies, strong hamstrings play a vital role in our overall strength and stability. To learn more ...

I write about fitness for a living, but if there’s one move I can’t stand, it’s burpees. Sure, it’s a powerhouse move that ...

Prolonged desk work can lead to musculoskeletal problems ranging from annoying aches and pains to injuries. This month, we launched a six-part series showing you how to stretch and strengthen your ...

Knee pain can make doing just about anything uncomfortable, if not downright impossible. These are some beneficial stretches ...

Hamstring curls and Romanian deadlifts both strengthen the hamstrings, but they challenge the muscles in different ways. Beginners may benefit more from hamstring curls, while Romanian deadlifts are ...

Natalia Perez-Segnini is a NASM-certified personal trainer, a yoga instructor, a breathwork practitioner and a trauma-informed specialist. As a head coach at Tone House—a premier athletic-based ...

Use the RDL to build a stronger, shapelier backside.

A certified trainer shares 5 chair exercises that restore leg strength after 60. No squats or heavy lifting needed.

When it comes to exercises that deliver bang for your buck and work muscles across your whole body, you're probably thinking of big-ticket exercises like your squats and deadlifts. But what about the ...