. >> some of this money has gone to aubrey de grey - he's been talking about aging for decades. a lot of poeople in science say that he's more talk than real science but he claims this is no longer fringe thinking. he believes we can actually stay young or return to youthfulness. we're actually going to take him out and see just how young we feel. de grey is a biologist and co-founded the sens research institute in mountain view california which raises money to support anti-aging work by scientists. he says most people are stuck in a pro-aging trance - where we think growing old is inevitable rather than a solvable medical problem. >> we have a completely, biologically invalid and incorrect idea that there is some kind of black and white wall between aging itself - whatever the hell we mean by that. and the diseases of old age--like alzheimer's, or cardiovascular disease or cancer. >> he argues that we must treat aging as the disease itself. he's clear that this is about longer healthy life not just long life. >> but the ability to live forever? is what everyone is thinking abou