Well, there’s the obvious one: everyone knows that MMA isn’t going to be good for your head.
The discussion around other sports and CTEs is mainly that it’s more prevalent than previously thought in sports with protective gear. Any idiot knows being punched in the head is bad. But it’s less obvious that it’s still a risk with other sports. Plus, it’s an issue with kids playing those sports. Kids in martial arts aren’t actually trying to knock anyone out.
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