There were moments during the last four years when David Wise wasn't sure if he would survive.
The defending Olympic ski halfpipe gold medalist endured the worst two seasons of his career. He suffered three concussions, plus serious injuries to his shoulder and back. His wife, Alexandra, experienced severe postpartum depression. Sponsors fled. His sister, Christy, lost her right leg in a boating accident and nearly died. One of Wise's students committed suicide.