Every day brings a new physical challenge, and that unpredictability is exactly what’s reshaping modern fitness routines across the United States.

Starting any new exercise practice can be daunting, but entering a CrossFit box can be particularly nerve-wracking. Here’s everything you need to know to begin your CrossFit life. Are you ready to ...

Unless you've been living under a rock for the last few months, you've no doubt heard of CrossFit -- perhaps you've even taken a class or seen competitions on TV (or saw SELF's exclusive workouts in ...

"Best Shape of My Life" Steve Booth is another CrossFit enthusiast who can often be seen working out at Atkins Functional Fitness Facility. He usually begins his mornings there, completing a WOD ...

A few months ago, after years of hearing many rumors about CrossFit — that it changes your life, that it's incredibly hard, that it's caused more than a few muscles to be ripped from bone — I finally ...

FORT HOOD, Texas - Flat on his back. Drenched with sweat. Face scrunched up in agony with moans of physical exertion escaping from his lips, Capt. Michael Keathley, assigned to Headquarter and ...

As a former Ninja Warrior champion, Ben Polson knows what it means to be in peak physical shape, and is constantly seeking new fitness challenges that push him further out of his comfort zone, from ...