Concussion” is an American film depicting how a Nigerian physician relates the cognitive and behavioral changes in several American football players to repeated concussions and tries to create public awareness to this fact. In autopsies of players Professor Omalu discovers extensive deposition of abnormal tau protein in the brain, similar to that of in Alzheimer’s disease. Repeated concussions which was also seen in the boxers, cause “Chronic Traumatic Encephalopathy” or “CTE” and leads to the death of brain cells and dementia.