The very old make interesting case-studies. At one time, back in his scientist days, Sniffy would have given his right arm to get them into a lab with a control group. But who wants to be in a control group? That’s pretty much the whole problem, in a nutshell. No one wants to grow old. Get a steady supply of FREE when you’re young, though, and you never do. In theory, it was a wonderful prospect. The practice hasn’t quite panned out.