They were brain damaged prior to wrestling if they didn't think they might get their brains hurt doing what they do. Fake is fake, but some of those choreographed jumps and flips they take off the top of the corner posts could easily break a neck if they land wrong. It's amazing they land as planned almost all the time.
http://www.foxnews.com/health/2016/07/19/dozens-wrestlers-sue-wwe-over-neurological-injuries.html
http://www.foxnews.com/health/2016/07/19/dozens-wrestlers-sue-wwe-over-neurological-injuries.html