[lotsofpulp]

Repetitive forceful motions cause damage too, such as pitching in baseball. Headers in soccer also cause CTE.

[goatlover]

Extreme sports and mountain climbing are also known to cause damage. But ultimately, people are free to choose how they wish to live their lives.

[lotsofpulp]

I agree. Only change I would in US is to remove sports from academic schools. Especially ones known to damage the brain.