Bryan Johnson· Author
true whole body biological age reversal is not yet here.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
true whole body biological age reversal is not yet here.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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So, I think uh slowing down is possible to some extent, but we can't really reverse very well. And so, you can uh offset some damage like you can repair some, you know, worn down ligaments, you can make your heart run better or try to chip away at some aging damage, but generally speaking, you can't reverse age yet. So like you can't take a 47 year old kidney or liver and like make it 19 years old.