Is There A 'Concussion Crisis' In Sports?

Aug 7, 2012
Originally published on August 7, 2012 12:03 pm

Scientific evidence is mounting on the links between sports and concussions. Host Michel Martin explores what some are calling the "concussion crisis" for athletes. She speaks with Chris Nowinski, author and co-founder of the Sports Legacy Institute, a group focused on researching concussions in sports.