What’s the big deal though? Almost everyone has suffered a concussion or knows someone who has. That was essentially my sentiment before hearing about the recent Boston University study that identified chronic traumatic encephalopathy posthumously in 96 percent of NFL players subjected to the study. More commonly called CTE, chronic traumatic encephalopathy is a progressive degenerative disease of the brain found in people with a history of repetitive brain trauma, such as concussions. The brain degeneration has been associated with memory loss, impulse control problems, aggression and depression to name a few symptoms.