Head injuries and athletics are back in the news. This time, it's not because of one big hit, one dangerous concussion. A new study indicates that smaller hits -- hits that might seem innocuous at the time -- can add up to serious damage. We talk with Dr. Jeff Bazarian, among others, on what parents and athletes should know about it, and Eric Rozen, head athletic trainer at the University of Rochester.
Connections: A New Study on Concussions
