dr. scott gottlieb, has already made monumental impact on the way regenerative medicine is being approached. >> until ten years ago i thought i wanted to live for as long as they could possibly make me live. and then the effects and proximity of dementia and alzheimer's started to set in on me. let's say you guys succeed at what you're doing. aren't we all going to suffer from dementia and alzheimer's? >> what we recognize is that our bodies are continually undergoing a process of renovation and renewal. that process is driven by the population of stem cells that reside in every tissue and every organ. believe it or not, over time the size of that reservoir shrinks and the quality of the cells in that reservoir becomes corrupted. our partner craig ventor, our good friend, talking about the dna, which in every nucleus, in every cell, is damaged over time. the same thing in dna in stem cells. by taking cells collected at the instant of birth, processing them, storing them away, you've put in suspended animation that biological software. it's like the master reboot disk that when you introduce