tech entrepreneur bryanjohnson is spending millions trying to turn back time on his body. to myself as a professional rejuvenation athlete. it's a new sport i want to create. i'm not a bio—hacker, i'm not a health enthusiast, i am a professional rejuvenation athlete. i love it. working with a team of 30 scientists, his daily life is dictated by an extreme regime of fitness, diet, tablets, tracking and treatments. i am chronologically 45 years old. biologically, i'm a few hundred ages. my left ear is 64. my fitness test say i'm 18. my heart is 37. my diaphragm strength is 18. and i playfully say i'm trying to become like an 18—year—old. my son is 17 and so, i always tease him and say, "when i grow younger, i want to be like you". where's he taking me? brilliant. wow! where to start in here? what's this? this is high—frequency electromagnetic stimulation. we got this machine because we were trying to solve a problem. every night, i was getting up one time per night to go to the bathroom, and when i do so — that's actually normal — but when i did so, it produced less quality

tech entrepreneur bryanjohnson is spending millions trying to turn back time on his body. over there, which i'll show you... there are no injections — that's just from everything in here? that's right. what do we have next? this is something that also tells you the health of your cardiovascular system, so your age. it looks at advanced glycinate product in your skin. so if you want to try it, you can put your arm on it, and it will tell you your age. an ideal school would be around two. you your age. an ideal school would be around two-— so i am only a little bit too old for my age, it could be worse. what's next? ok, this is an ultrasound machine, its medical grade, so this is what you would see in a hospital. are you having a baby? laughs who knows with what you're getting up to already! what are you actually using it for? we look at the brain, the lungs, the heart, the pancreos, prostate, tendons, ligaments, everything. it is really a useful technology to have in the clinic to do it on a routine basis. how do you feeljust before you do any of this tracking? do you get a