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. Crossfit’s intense ...

Add Yahoo as a preferred source to see more of our stories on Google. Few fitness trends have experienced as meteoritic a rise in as short a period of time as has CrossFit. First entering the scene ...

CrossFit's cult-like following can feel a little, um, weird sometimes. It's strange for people to be so in love with something that most people avoid at all costs -- exercise. Especially intense, ...

It's every CrossFitter's favorite time of year: the CrossFit Open! Every March, every CrossFit gym in the world does the same workout for three consecutive Fridays. Athletes can either do the workout ...