Back pain, whether in the upper, middle, or lower back, affects millions of people around the world. It can occur for many reasons—from prolonged time in front of a screen, an injury, osteoarthritis, ...

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Lifting heavy weights is not the only way to strengthen your muscles. And studies have shown that ...

Leoni Jesner is a fitness, health, and lifestyle writer who has contributed to Byrdie and LIVESTRONG.com, among other publications. She is also a personal trainer, mat Pilates instructor, and ...