Irvin Muchnick 
Concussion Inc. [PDF ebook] 
The End of Football As We Know It

Traumatic brain injury in football is not incidental, but an inevitable and central aspect of the sport. Starting in high school, through college, and into the NFL, young players face repeated head trauma and those sustained injuries create lifelong cognitive and functional difficulties. This compilation from Muchnick’s no-holds-barred investigative website reveals the complete head injury story as it developed.