Bryan Johnson· Author
In fact, in your 20s, you start losing 1% of your collagen every year. So, by the time you're 80 years old, you've lost 75% of what you had in your early 20s.
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.
In fact, in your 20s, you start losing 1% of your collagen every year. So, by the time you're 80 years old, you've lost 75% of what you had in your early 20s.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
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.
in our youth we have a lot of facial fat that over time it lessens in fact in your 20s you start losing 1% of your collagen every year so by the time you're 80 years old you've lost 75% what you had in your early 20s