What is chronic traumatic encephalopathy?

Published On: May 06 2012 06:48:36 PM CDT   Updated On: Jul 08 2014 07:40:55 AM CDT

The NFL has reached a preliminary settlement in a lawsuit filed over player concussions. Find out more about chronic traumatic encephalopathy, the disease several former NFL pros claim they are now suffering from due to hits on the field.