Bryan Johnson· Author
My sensitivity improved since last year by 37% (left heel) and 8% (right heel).
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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.
My sensitivity improved since last year by 37% (left heel) and 8% (right heel).
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you have 5.88 and on the left foot you had 6.54 yes so you are much better that's a big difference yeah yes so over the course of just a few months I dramatically improved the level of Sensitivity I have on the heel of my foot