Ok...so whose to say that during the experiments, before they all got turned into Nobodies, one of the experiments didn't just age them all a few years. Let's say 5 year, give or take a few. Nobody knows what the experiments did. Or maybe....(same thing kind of) they screwed up on an experiment, and (again) it caused their aging process to speed up tremendously. It wasn't until a few years later they found out the only solution to stop it....become Nobodies.....of course they might've bit off more than they could chew.