Very true, and one of the ways/reasons you can get addicted to BJJ. It is awesome when a white belt with 6 months of training comes up to me after sparring and says that while he still got beat, he was able to think and try stuff even while getting crushed by a bigger opponent, or dominated by a better one. It is even more addicting when you are able to not just think through a problem/situation, but then have the ability to execute the solution and it works exactly as it should. No drug gets you that high.