Last week, one of my meekest, weakest friends (said with love) asked me to go boxing with her. This may have been wildly out-of-character for her, but for me, it confirmed a trend I’d already been noticing. Boxing, Jiu-Jitsu, Muay Thai, and all other sorts of combat-style workout classes are having a mainstream moment. In many ways, this is nothing new—how could I erase the legacy of Tae Bo nation ?—but I’m not the first to clock an uptick in “fight-style” workouts across social media and gym class offerings these days. So what's actually driving this trend? And more practically: Even if you're not planning to step into a ring, what can you take from the way fighters train that's still worth your time? Why "combat training" is gaining in popularity From where I’m standing, I see a few things converging. During the pandemic, a lot of us sought out training that felt purposeful and grounding.…