Thread

1. rotbart · 1791018164 · focus · HN ↗

   The strongest evidence we have of the reversibility of epigenetic aging, as well as its limitations -- are embryos which undergo an epigenetic reset.

   After fertilisation, the embryo strips the father's DNA of its age-linked chemical tags and swaps its packaging, destroys his mitochondria, rebuilds telomeres, and clears damaged proteins, though it can't undo the DNA mutations sperm gather as men age.

   (those that result in an non viable embryo result in miscarriage.)

   1. HexPhantom · 1791033313 · focus · HN ↗

      Embryos are probably the clearest proof that at least some of what we call biological aging is reversible rather than simply accumulated irreversible damage

      1. jjallen · 1791034681 · focus · HN ↗

         Is this just a summary of the parent post? Seems like you just repeated what they said.

         1. [deleted] · 1791040337 · focus · HN ↗

            [deleted]

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