1. Lack of flexibility
I know I’m not the most flexible guy in the gym, but I used to be much worse. I usually shied from rubber guard, and when I didn’t I’d have to compensate space for lack of flexibility. I would always cringe at the idea of being stacked, and when it happened, I was at a loss for whatever submission I had been attempting. Not only was it limiting my jiu jitsu performance but it was also injuring me. Then I met a yoga instructor (who is now my wife). I had no idea how important the mobility aspect was or how much more enjoyable doing yoga would make BJJ for me.
The best thing I took away from it was when I hurt my lower back. My hips, like those of many other jiu jitsu practitioners, are overworked. Because of this my back went out and I bulged a disc. To fix it, I followed a series of stretches for the hips and my back healed right up. I still use those stretches to maintain hip flexibility and increase mobility. If it wasn’t for those stretches, I doubt I would have been able to continue with BJJ. I highly recommend a good yoga program. The type I take is called Hatha yoga and its focus is restorative. Because I already do jiu jitsu, which is very fast and athletic, I don’t want a yoga style that mirrors this. Yoga being so different from a combat art it gives me a very satisfying sense of balance.