Can 20 minutes of push-ups, pull-ups, and squats really transform your fitness? I did the classic CrossFit Cindy WOD for a ...

Greg Glassman, inventor of the CrossFit fitness system, at an affiliate gym in New York City.. Andrew Hetherington On that spring day across America, the CrossFit faithful gathered–and toiled. There ...

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, ...

Much like Dungeons and Dragons, Renaissance faires, and sex parties, CrossFit is something that everyone has heard of — but few have an accurate understanding of what it entails and who it's for.

Doctors and health coaches from CrossFit Precision Care use precise genomic profiles, advanced labs, and biomarkers to help each person build a plan to protect and improve their health. The result is ...

LEN NUANEZ was driving home from his post at Naval Air Station Whidbey Island one day when he saw a curious sight: people in a parking lot flipping massive tractor tires. They’d squat down, wedge ...

Why it’s inclusive: Workouts can be scaled in load, movement, and volume so beginners and experienced athletes train together at their own level. What to expect: Classes flow from warm-up to skill or ...

This exclusive excerpt from ‘The Glass Box’ documents the early days of CrossFit—and its conflicts.