Former football player and wrestler Chris Nowinski's quest to publicize recent findings about the often dire consequences of head concussions sustained by athletes in contact sports — injuries that have previously been considered momentary setbacks and ignored in the name of toughness and dedication to the team.

• Head Games the Film
• Christopher Nowinski
• Alan Schwarz
• Keith Primeau
• Robert Cantu, MD
• Ann McKee
• Isaiah Kacyvenski
• Cindy Parlow Cone
• Brendan Shanahan