I have a new found respect for 50 after watching this video...
A fifteen-year-old YouTube star Keenan Cahill has a rare genetic disorder called Maroteaux-Lamy Syndrome, also known as MPS-VI. This disorder, which affects one in 25,000 people, has no known cure. Those with the disorder usually stop growing at about age 8 and are characterized by a shortened trunk and restricted movement.
sorry if this has been posted.. just thought it was cool of 50 to do.
http://www.youtube.com/watch?v=Dwimc4cvUmQ