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Video: What's in a football helmet?
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Football is back, and with all the hard hits and tough tackles come renewed concerns about safety. Every NFL player is required to wear a helmet, but the helmets of today are a far cry from the leather creations from decades ago.
To kick off this football season, Reactions looks at everything that goes into a football helmet and how chemistry helps keep players safe.
Check it out here:
Provided by American Chemical Society