From an injury perspective: What are they? Let's assume we're talking MS/HS football where the mass of the players is enough to really do some damage.

Provide your data Mr. Thrwaway, if that even is your real name.

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thrwaway73637 2 hours ago | parent [-]

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	▲	jamiek88 2 hours ago \| parent [-]
		From the article: The bulk of the head impacts that these former NFL players experienced didn’t occur at the NFL level. They occurred at the collegiate level ... and at the high school level and in many cases the youth level. And all of those cumulative hits to the head added up to result in an increased risk,” said Daneshvar.