I've always had a personal saying to short any story or company that appears on the cover of Time Magazine. The thought being that by the time a movement or company is that mainstream it is oversold.

I'm inclined to stick to my heuristic here. I'm not seeing any scientific basis to these life enhancing approaches. Rather, I see extremely wealthy individuals who are afraid of dying.

Lorenzo de Medici was also magnificently wealthy and willing to deploy substantial capital in an attempt to live longer. Supposedly he ate crushed diamonds on the recommendation of his doctors, before he died.