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. It’s easy to almost ...

Pullups and heavy barbells aren't the only way to add muscle and strength to your lats and mid-back.

Denise Austin and her daughter and fellow fitness instructor, Katie Austin, share moves to improve back and core strength. “Your spine is your lifeline,” she says. She recommends doing at least three ...

Post-workout soreness can be normal, but sharp or lasting pain may need attention. Explore the signs that separate typical ...

Strength training supports healthy aging by preserving muscle, bone density, metabolic health, and independence.