I am having a terrible time sleeping. After reading about the TWO 13 year old boys with Duchenne's who passed away already this year, I am just heart broken! I cant imagine what the parents must be feeling. Although you know that your child is expected to have a limited life expectancy, you sure don't expect it to be 13! I guess it hit pretty hard because we have a soon to be 14 year old. Although he is doing well over all, little things seem to be happening and sneaking up on him.