Bryan Johnson· Author
And so it just seemed that was when I was building kernel the brain interface and I thought how obvious is this you just measure like you basically just outmeasure everything and you follow the data that's just like such a clean solution and so uh we just got to work we did every single measurement we could find that would give us any kind of insight in terms of the biological age of various things like we did the obvious things like blood draws and we did MRIs but we did things like nerve sensitivity I did a a full-on professional hearing hearing grades test. Uh, of course, like eyes. Uh, we looked at, uh, did eye measurements, looking at my optical nerves and fibers. I mean, um, we did so we did a whole bunch of physical fitness tests, like so many follicles under the skin, what's happening to the hair under the microscope. We did like 3D imaging of your face to see changes across time.