The Super Bowl is around the corner, and concerns over the effects of repeated traumas to the head are in the spotlight. And some research suggests that *less* protection might actually prevent injuries.

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Tokyo Olympic Flame Is the First Powered by Hydrogen
The flame at Tokyo’s National Stadium and another cauldron burning along the waterfront near Tokyo Bay throughout the games will be sustained in part by hydrogen, the first time the clean fuel source will be used to power an Olympic fire.
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