Anyone who says mma is more dangerous to the brain then boxing, has no clue what they're talking about. The whole point of boxing is to hit someone in the head as many times as you can, over and over. And that goes on for 12 rounds In mma, you sometimes have entire fights that are on the ground and about submissions and wrestling, where guys barely get punched in the head. And that lasts 3 rounds, less then that on average.