Andrew Huberman· PhD
there's one epigenetic mechanism known as DNA methylation, which is, you know, a methyl group is is basically like this chemical tag and it can get kind of tagged onto the genome. So there's great work in aging that shows that the epigenetic clock measured by DNA methylation starts ticking in infancy and faster biological aging as measured by the epiggenome predicts shorter lifespan, worse health, earlier mortality.