Maybe food has sth to do with decrease of testosterone, but I think it's rather cultural issue. 1. Lifestyle. Less sport, more cars etc. 2. Politics. Testoste

Maybe food has sth to do with decrease of testosterone, but I think it's rather cultural issue. 1. Lifestyle. Less sport, more cars etc. 2. Politics. Testosterone behaviors are less and less rewarded (or even directly punished). Adaptive strategy is to produce it less.