Hi I'm really new to sherdog and would like to call on the experience of some people that practice bjj. I find myself more and more impressed when I see these techniques used in mma, I find myself wondering if there are any side effects to a rear naked choke, if for example the person doesn't tap out in time and blacks out. Does he loose brain cells is he ok afterwards or is it like a knock out where you can't drive afterwards etc. Any input would be greatly appreciated and I hope this question hasn't been asked to many times thanx .