Traumatic Brain Injury (TBI) and indeed concussion has been with us since time immemorial, well before organised sport was even thought about.
The idea therefore that concussion and the cumulative effects there of are a problem borne and seen only in sport is heavily underselling the potential harm it is causing in the wider community. However, out of the tragic events in and around Americann football (NFL), investigative journalists delved deeper into the 'cause' of the abrupt and untimely deaths of several ex football players. The conclusion, serial undiagnosed TBI led to a premature neurodegenerative type condition which was later labelled Chronic Traumatic Encephalopathy (CTE).
Post an initial article, the story was presented in a TV news special on PBS, of which the link can be seen below. Post this, the proverbial hit the fan in the greater community.
Drama, publicity and 'hype' aside, the subject warrants science and science alone to prove or disprove the link. The 'worse' outcome would be that CTE, associated conditions such as Alzheimer's, etc could be studied more deeply than currently and provide more insight and indeed potential cures.
Similar to the subject of global warming, lets leave the facts to the scientists to analyse, debate and conclude on.