Aired 6 years ago - May 11, 2018
As Bill breaks down the science of aging, his correspondents try bizarre beauty treatments and learn how spinach could transform organ transplants. Spoiler Alert: We're all going to die. But controversial technologies-like stem cells, head transplants, and 3D-printed organs-are extending our lives. We can really drag this thing out if we want to, but do we really want to live forever?
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