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. “Be able to do a ...

“Be able to do a pull-up” is a common fitness goal, and if you work hard—with negative pull-ups, inverted rows, and more—someday you’ll get there. Go ahead, take a minute to celebrate. But don’t drop ...