Oh, and one more thing. The "billionaire anti-aging guy." you are referring to, is that Bryan Johnson with his Blueprint program?
If so, I'm working on a post about his system. But it will take me a while, because I have to do quite a bit of background research. My post won't be about him (he comes over as a bit of a weird guy), because I need to separate the person from the program/idea. But what I'm seeing so far does not convince me his approach will serve the intended purpose, and it is certainly ou of reach for 99.9% of the people.