Celebrities Get Physical: Combat Training with A-Listers

TL;DR
Celebrities, including Mark Zuckerberg, are turning to jiu-jitsu and other martial arts for fitness and self-defense. The sport's popularity has grown in recent years, with many gyms offering classes for beginners. Jiu-jitsu is seen as a way to build strength, improve flexibility, and relieve stress.
Is That Zuck on the Mat? A-Listers Are Learning the Art of Combat The Wall Street Journal
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