If only the brains of people with possible symptoms of CTE are studied after their deaths, wouldn't you expect 99% to have CTE? DUH! Has anyone looked at brains of football players who did not commit suicide or die young for strange illnesses? I'm not a big NFL fan but I don't think results are worth the paper they were written on. The data is skewed. Hope the NFL figures this out before Congress bans football in the US.