Chris Nowinski from the WWE joins MaD Radio to talk about CTE and what we have learned about it and what we can do to protect people.
WASHINGTON-FEBRUARY 2, 2004: WWE Superstar Chris Nowinski attends a Smack Down Your Vote! news conference in Washington on Monday Feb. 2, 2004. The group released a National Voter Issues paper which asks questions every candidate should answer to win 20 million 18-30 year old votes in 2004. (Stephen J. Boitano/ Getty Images)