An estimated 80% of the population will suffer from lower back pain at some point. The good news is that preventing it is a lot easier than treating it ...

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 ...

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, ...

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

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 ...

Adrenaline increases the "alertness" of the nervous system, meaning it's ready to trigger muscle contraction. It also increases the amount of blood flow and changes the tension of the muscles, which, ...

Chances are, as you’re reading this, you’re hunched over your phone or slouched at your desk. And it hurts. You’re in desperate need of some exercises for low back pain. Your lower back is one of the ...

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 ...

Infectious agents can cause muscle twitching and spasms, too. The most commonly known is probably tetanus, which causes a phenomenon called lockjaw, where the neck and jaw muscles contract to the ...