Alt Text: post that says dripping testosterone levels in men since 1980s is the biggest crime of the century.

  • run_rabbit@lemmy.ca
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    7 months ago

    A useful approximation of normal T levels in humans can be seen in present day hunter gatherers in Africa. The Hadza tribe was shown to have an average level of 151pmol/l, well below that of what we see in societies such as America. We can, therefore, argue that the reduction of T levels in modern man over the last few years is a shift back towards the norm.

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2674347/#:~:text=Consistent with data from a,Hadza and the Datoga%2C respectively.

    • Ummdustry@sh.itjust.works
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      7 months ago

      However, both populations experience suboptimal access to energy, and consequently maintain minimal levels of body fat and low BMI

      You are citing a malnourished population.

      Previous studies of non-western populations have revealed inconsistent associations between men’s testosterone levels and paternal or marital status. | Twenty-seven Hadza participants | Eighty Datoga participants

      This is a comparitively small study, and one which contradicts other bodies of research.

      As with male birds, it seems likely that testosterone facilitates reproductive effort in the form of male–male competition and mate-seeking behaviour, both of which interfere with effective paternal care.

      Given the increasing social atomisation of the west (see:average age of fatherhood, number of children had, divorce rates), the hypothesis proposed by this paper implies testosterone levels in the west should be increasing not decreasing.

      Look, I get the desire to debunk redpillers, but when we’re talking about a worldwide trendline in basic biology you’re going to need more research than this to do so. The Male infertility crisis is a genuine problem field experts are extremely worried about, hence the need for research and coverage by the mainstream (to stop snake oil salesmen being the main point of contact for this issue).

      • KillingTimeItself@lemmy.dbzer0.com
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        7 months ago

        The Male infertility

        i think male infertility is probably less of an issue when we consider that most people born now, do not want to have kids, based on the pure fact that it’s too expensive, time consuming, and grueling in the modern era.

        Unless that’s what you mean by male infertility. But last i checked that’s not what that means. Perhaps even male infertility is going up because people want less children? Sign of the times sort of a deal, who knows, science is fucked! Or actually, it might be a result of better medical services, allowing people with worse fertility to have children now, when they previously wouldn’t have been as likely to have children. Perhaps a result of decreasing infant mortality. Though i frankly doubt that’s a significant factor.

    • OneWomanCreamTeam@sh.itjust.works
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      7 months ago

      They love to pretend that they’re experts at biology but fail to grasp that it’s fucking complicated. More isn’t always better with hormones.