Face-Down, Head-First, 90 Miles An Hour On The Ice

At the winter Olympics, which get underway next month in Pyeongchang, South Korea, some of the most blistering speeds will come in the three high-adrenaline sliding sports, where top athletes zip on the ice at about 90 miles an hour.

There's bobsled, kind of like a downhill race car on steel runners.

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