Fast runner with Multiple Sclerosis

http://www.nytimes.com/2014/03/04/sports/for-runner-with-ms-no-pain-while-racing-no-feeling-at-the-finish.html?ref=sports

18 year old HS girl, did 10:43 for 3200m. She collapses (literally) after each race, as her legs go numb, so her coach needs to be at the finish line.

http://static01.nyt.com/images/2014/03/04/sports/Y-JP-RUNNER/Y-JP-RUNNER-articleLarge.jpg