Mental illness.....

[McC]

(03-06-2019, 10:19 AM)JS-Steelerfan Wrote: CTE can occur without concussions.  It can be caused by repeated multiple blows to the head, whether they cause concussions or not.

http://www.bu.edu/cte/about/frequently-asked-questions/

Scroll down to the first question (How do I get CTE?)

You're exactly right.  Junior Seau, for instance, was never even diagnosed with a concussion.