Quote: "As far as I know this "reversed aging" doesn't let you live longer. The mice still died at their regular age, it's just they acted younger when they were older. There will be no 3000 year old people
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If you read the article fully, i'm sure you saw the science behind it? During the process of mitosis, a 'buffer' gets damaged as the cell splits, and each time the buffer gets smaller until the cell can't divide anymore, and you eventually don't have enough cells and die.. The treatment restores the buffers, therefore you live longer.