CNN's John Sutter talks with his cousin Richard Lee, a Harvard professor who is working on ways to extend the lifespan of humans. He says he can see how it feels like life extension porn that you're going to upset biology and history and civilization. But research should be about living long and living well, not just getting older or younger, said Sutter. "I would change my answer if I feel my cognitive and physical states were not significantly diminished"
How far would you go to extend your life? What’s the best way to stay sharp as your brain ages? And does Keith Richards deserve a Nobel Prize?