Bryan Johnson· Author
And the air quality outside for um threeish months or so was between like 200 and 300 um PM2.5 which is you know an average of at least like 2x LA maybe like 3x LA 5x 5x sorry
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.
And the air quality outside for um threeish months or so was between like 200 and 300 um PM2.5 which is you know an average of at least like 2x LA maybe like 3x LA 5x 5x sorry
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