What gives me pause is the amount of opportunity for profit with these products. Given their presence, how can one know for sure what a healthy testosterone level really is? I'm sure that low testosterone is a real thing that people suffer from, but I wouldn't be surprised if these treatments become too common too quickly.

I've read other things suggesting that testosterone levels worldwide are down and have been steadily decreasing for decades, likely due to the prevalence of plastics and other man-made things introduced into the environment and most importantly, our food. I'm not entirely sure of how well-informed or unbiased the things I've read on the subject are though.

Anyway, while people say that they are interested in longer lifespans, it really seems like they're interested in a prolonged prime of life, which of course means maintaining healthy levels of hormones. I know that I don't want to live forever as an old dude, especially in a dominant culture that frowns on inter-generational relationships (which I don't get, honestly).