This is recent, but this has been the belief/data for years: https://www.cnn.com/2018/01/18/health/cte-concussion-repeated-hits-study/index.html https://www.cnn

This is recent, but this has been the belief/data for years: https://www.cnn.com/2018/01/18/health/cte-concussion-repeated-hits-study/index.html https://www.cnn.com/2018/01/18/health/cte-concussion-repeate... CTE is almost by definition not concussion-related. The effects of concussions are part of the concussion.