After a downhill crash and ruptured ACL, Lindsey Vonn is training for her fifth Olympics. Experts explain how she is racing ...
Sporting News on MSN
What is on Alysa Liu's teeth? Explaining Olympian's 'smiley' piercings and how much they cost
Fans might notice something different about Liu's smile.
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Bizarre facts about diseases and the human body
Ever looked in the mirror and wondered what incredible, and sometimes unsettling, secrets your own body might be holding?
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