Humans have always been obsessed with growing old—or, more accurately, staying young—and now science is catching up. Longevity has become a hot topic from university labs to Silicon Valley startups. In the second of a special three-part Science Weekly miniseries on aging, Ian Sample speaks with Venki Ramakrishnan, winner of the Nobel Prize in Chemistry and author of Why We Die. Venki outlines the most promising scientific developments in the field of longevity and discusses the more unusual ways the wealthy are trying to extend their lives, from blood transfusions to cryonics.
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