Nintil - Aging is already solved in vitro. What comes next?

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The "what is aging" question is a recurrent one in geroscience (I have my own take here ), but everyone would agree that if we take something that we deem old, do something to it, and then we have no way of telling that apart from a younger version of itself, then it's fair to say we have solved aging for that thing. If you are a single cell on a dish, cellular reprogramming is great news: Take a cell, reprogram it to a pluripotent stem cell (iPSC) and then back to the original cell type, recapitulating in a cell what an immortal jellyfish naturally does. The result is a cell that is indisting

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