Agenda here is appropriate -- Kurzweil is unabashed in his desire to push health & tech to the point where he can live forever.

At the very least he had, as of a few years ago when I met him at a speaking event, very few wrinkles for someone his age. I don't think he's got magical life extension kool aid yet, but it seems like he's doing something that at least reduces the appearance of aging a little bit. Although all the meta-analyses recently reporting the potential negative effects of supplementation are in disagreement with his approach.