Mr-914 wrote:Jon: They did teach you to lead with your shoulder, right?
Uh...not really. Yes, you were "supposed to", but if you could hurt the other guy. Watch/listen to that Frontline report. It is the same thing being said in there. "We know its wrong to lead with your head, but that's how you inflict damage and sometimes you have to beat your opponent into submission" (not a direct quote, but a paraphrase/amalgamation of several interviews in the show).
But, let's say that every kids in the world is taught to "lead with their shoulder". At 12, 13, 14 yrs old, you don't have the coordination yet to do so. You're going to stumble, have miscues, whatever.
There's a report discussed in the show about how it isn't about concussions, but the repeated impact is causing degenerative damage to the brain. The comparison made was to a rotator cuff injury. How over time, your joint just wears out. They're now starting to say that hit after hit has a cumulative effect that in turn creates mini tears in your brain that contributes to depression, suicide, and other evil maladies.