The 34-year-old wrestler says he has had at least 10 concussions, some of them leading to seizures.<br /><br /><br />Make ABC News your daily news outlet for breaking national and world news, broadcast video coverage, and exclusive interviews that will help you stay up to .<br />Every weekday 7 a.m. - 9 a.m. Good Morning America brings you the latest breaking news, expert analysis, helpful advice for everyday living, recipes from the .
