NFLのインスタグラム(nfl) - 9月18日 02時06分

Helmets are becoming safer at an unprecedented rate, driven by the NFL’s advanced data collection and helmet testing, which have led to more and better options for players.

Continued improvement in helmet safety has contributed to a sustained 25% reduction in concussions in each of the last four seasons. We’re committed to continuing our work to build a better game.

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