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Five days before the 2010 Olympic snowboarding trials, Kevin Pearce slammed his head on a rock-hard wall of halfpipe, suffering severe brain trauma that flipped the script of his life. A return to competition is out of the question--he's had to relearn how to walk and talk--but that's not enough to keep him off the mountain.

Asperger’s turns social interaction into a source of suffering. “It’s like everyone else has a bucket for dealing with people,” says Clay, “and I only got a cup.”