If you’re looking for a way to move your body that builds strength, boosts your mobility and improves your mental agility, you need to try Brazilian jiu-jitsu (also known as BJJ). Many people assume martial arts aren’t for them. I certainly never thought it was something I would enjoy. Working as a fitness writer, I’ve tried countless forms of exercise over the years, but grappling on the floor with a stranger had never appealed to me. But when I recently tried BJJ, I discovered there’s much more to it. Not only did I learn lots of new skills in one session, it also challenged my strength, fitness and mobility—and I was laughing almost the whole time. You may like I now believe it’s one of the best ways for people of any age to move, especially if you have longevity in mind. What is Brazilian jiu-jitsu? BJJ is a martial art involving grappling, which often looks like rolling around on the floor with a partner. But it isn’t about sheer force—it involves specific sequences and …