I'm Jack and I'm now 8 years old. I have Perthes Disease. I try to keep active as much as possible within the safe zone of Perthes. I don't want to have Perthes forever, so I try to keep the weight off my left leg. I use a wheelchair at school and crutches everyday. I am allowed to swim, sail and I use my handbike to have adventures and raise money and awareness for Perthes.