Check out this ESPN feature about this young woman with Multiple Sclerosis. She is a runner, and as her races and body heat up, she can't feel her legs.
When she finishes each race, she cant stop due to this...and must be physically caught by someone...then carried off the track. She does this race, after race, after race...and she laces up her shoes and gets back on the track! She never gives up!
The girl's name is Lauren Montgomery. See her story is here
Check out these pictures of some PFF-Champions that, like Lauren, NEVER GIVE UP!