Hunched over a desk all day? Science shows that weak iliopsoas muscles are the hidden culprit behind chronic back pain, but ...

A trainer shares the exercise that can best treat lower back pain. Discover exactly how to do it and why it works.

You've likely heard of sciatica before. The shooting pain that runs down your lower back, buttocks and leg can disrupt your daily routine and linger for months. But if you've tried traditional ...

Everyone loves a good stretch. The practice feels good because the act of stretching activates a network of relaxing and calming nerves and increases blood flow to one's muscles. Stretching also ...

While lower back exercises are far less glamorous than ab exercises, they are equally as essential. Weakness in the lower back is one of the leading causes of chronic back pain in adults, but if ...

Many of us want to get buff for aesthetic reasons, but building muscle helps health and longevity. It's a myth that you need to spend hours in the gym to build muscle. Exercises such as squats, ...

In most workout splits, one to two dedicated leg days per week is common, but it really all depends on your fitness level and ...

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 ...

You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...