Bryan Johnson explores whether a 46-year-old can restore penis function to match an 18-year-old's, measuring health by blood flow and nighttime erections rather than size. He argues sexual function matters as much as heart or lung health for identity, meaning, and joy.
The question is, can a 46 year old male regenerate his penis to have the performance characteristics of an 18 year old? Not just in tough guy talk, but can you actually have a functional penis equal to an 18 year old? The reason why we are working on penis rejuvenation is because we're looking at every organ of the entire body. Your reproductive system is just as important as your heart and your lungs and your liver. A lot of people talk about a penis as like, how big is your penis? But you really need to know. What is the flow? What's your urination speed? What are your nighttime erections? Sexual function is a critical part of any person's identity, of the way they make meaning in life, of their joy and satisfaction.
