Related topics: sports medicine · concussion · sports

Americans love football, but differ on whether kids should play

Football may be America's most popular sport, but the nation is deeply divided about whether youth should play the tackle version of the game. In a new study, about 45% of Americans agreed that tackle football is appropriate ...

Ski jump: Flying or falling with style?

If you or I jump in the air as high as possible, we can stay off the ground for about half a second. Michael Jordan could stay aloft for almost one second. While there are many events at the Winter Olympics that feature athletes ...

EXPLAINER: How China got blue skies in time for Olympics

The blue skies greeting Olympic athletes here this month are a stark change from just a decade ago when the city's choking air pollution was dubbed an "Airpocalypse" and blamed for scaring off tourists.

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