The face of Facebook isn’t afraid to have his rearranged. From starting Brazilian jiujitsu just a few years ago, Meta boss and billionaire Mark Zuckerberg has gotten so proficient that he’s medaling ...

Anyone who’s ever trained in Brazilian jiu jitsu (BJJ) knows how difficult the sport is. You show up every day for years, getting bruised, suffocated and strangled and having every limb hyperextended.

While Elon Musk’s and Mark Zuckerberg’s social media sparring about a potential UFC cage match (depending on Musk’s back, that is) has made many Google “jujitsu,” the groundings of the self-defense ...