A frequent source of lower-back pain comes from two muscles you might not have heard of—and that makes sense since you rarely see them on those medical posters of human anatomy in doctor's offices.

Dr.Steven Ludwig answers the question: 'Muscle Spasms -- Causes And Treatment?' — -- Question: What Causes Muscle Spasms And What Is The Best Way To Treat Muscle Spasms? Answer: Muscle spasm ...

Add Yahoo as a preferred source to see more of our stories on Google. According to the World Health Organization or the WHO, lower back pain affected 619 million people globally in 2020. That number ...

Plus, common mistakes to avoid.

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 ...

Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves more attention—and how to strengthen it. Lower back pain is often blamed ...