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Football's Concussion Crisis, Explained

Josh Kalven

Scientists are only just wrapping their heads around the long-term effects of concussions and their findings could change the game of football as we know it, not to mention hockey, soccer, and numerous other professional sports.

This explainer -- produced in Newsbound's unique visual style -- breaks down the history of the concussion crisis in the NFL and takes a look at what the future holds.

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