Also check out Multiple Concussion Syndrome. It's real and the reason why Dale Jr. took a few races off last season to recover.
Some said he was faking it or whatever for taking time off to heal, but he just being smart and trying to stay that way. Been there, done that, don't recommend it.
22 posted on 05/29/2013 7:56:54 AM PDT by GBA
(Here in the Matrix, life is but a dream.)