I have been struggling on collecting 99's Umbilical Cord / Cord Blood things. It's worth a shot, but it's expensive. It's new tech but who knows we might be able to use it later on? Dave finds this article "Stem Cell Transplants in Mice Produce Lifelong Enhancement of Muscle Mass" and it brings us some hope. It might take another 5~10 yrs to work on human, but, at least, it's a hope.