Arm day, leg day, ab day—these are the familiar pillars of strength training. But what about lower back day? Our lower backs are often overlooked, yet they're a crucial part of fitness. Many of us ...

If you’re trying to fix that nagging back pain—or more importantly prevent it—try the following strength exercises and lower ...

There’s no easy way to put it: Lower back pain just plain sucks. Whether it’s dull and achy, sharp and shooting, or tight and stiff, discomfort on your backside is no picnic. But the good news is ...

Lower back pain is very common, given the modern lifestyles where we spend hours hunched over a laptop or stuck at a desk. Slouching, a weak core, and prolonged sitting put significant stress on your ...

And the best way to do that is to incorporate hip mobility exercises into your routine. In a world dominated by hacking ...

I learned a new Pilates core exercise recently, and it will set your obliques on fire without a Russian twist or side plank ...

What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between your ...

I often have clients call attention to the lower abs as a place they would like to tone. I always remind them that strengthening this area is important beyond aesthetics because strong ab muscles ...

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 ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Squats train all the major ...