Just want to point out two things when it comes towards viewing the 'recent' past in terms of 'manly men'. 1) Smoking increase testosterone levels in men [0].

Just want to point out two things when it comes towards viewing the 'recent' past in terms of 'manly men'. 1) Smoking increase testosterone levels in men [0]. As smoking levels have dropped, it is resonable to conclude that testosterone levels have too. It will be interesting to see the results of vaping on testosterone levels. 2) Obesity lowers testosterone. As the obesity epidemic clocks onward, testosterone levels will continue to fall. I'm not going to claim that lower testosterone levels are population wide, or that smoking should come back, or that obesity doesn't have other effects. But I am claiming that there is something there and that it's not all smoke and mirrors (pardon the pun). Our perceptions that 'manly men' have gone away in living memory are ... maybe true. [0] https://pubmed.ncbi.nlm.nih.gov/24457405/ https://pubmed.ncbi.nlm.nih.gov/24457405/ [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3955331/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3955331/