Bryan Johnson· Author
+ Grey hair age reduced from age 70 to 41 in 6 months
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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.
+ Grey hair age reduced from age 70 to 41 in 6 months
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
there is a significant lower amount of gray hair and I would probably say it's been reduced by about 40 percent