• DarkGamer@fedia.io
      link
      fedilink
      arrow-up
      79
      arrow-down
      6
      ·
      1 个月前

      From an evolutionary standpoint we just have to survive long enough to reproduce, if we can’t eat past age of reproduction there’s no evolutionary pressure to change that.

      Thank goodness for modern dentistry.

      • Hawke@lemmy.world
        link
        fedilink
        English
        arrow-up
        65
        arrow-down
        11
        ·
        edit-2
        1 个月前

        That’s completely untrue.

        Evolution applies to the entire lifespan — if we could “reproduce” but died in childbirth every time, our species would have gone extinct long ago.

        Parents and grandparents also contribute greatly to the success of a child long long after they’re born, helping to ensure it also survives to reproductive age.

        • Kecessa@sh.itjust.works
          link
          fedilink
          English
          arrow-up
          10
          arrow-down
          48
          ·
          1 个月前

          “grandparents”

          Life expectancy in 18th century France was in the 20s, grandparents are optional

          • PoopingCough@lemmy.world
            link
            fedilink
            English
            arrow-up
            65
            ·
            1 个月前

            I don’t disagree with your overall point, but statistics like that are almost always heavily skewed because of high infant mortality rates

            • snooggums@lemmy.world
              link
              fedilink
              English
              arrow-up
              25
              arrow-down
              1
              ·
              1 个月前

              The mortality rate during childbirth was pretty high for women on top of the infant rate. Childbirth as a whole dragged the numbers down.

              • psud@aussie.zone
                link
                fedilink
                English
                arrow-up
                5
                ·
                1 个月前

                The mortality of mothers only became a big issue between doctors being in charge of birth and hand washing becoming a rule

                • tetris11@lemmy.ml
                  link
                  fedilink
                  English
                  arrow-up
                  4
                  arrow-down
                  1
                  ·
                  1 个月前

                  The domestication of storks has also led to fewer deaths upon delivery. I wish to also add something to this thread of reddit factoids.

            • Swedneck@discuss.tchncs.de
              link
              fedilink
              English
              arrow-up
              1
              ·
              1 个月前

              18th century france is also quite possibly the single worst place and point in time to use as a comparison, there’s a reason people beheaded monarchs.

          • loaExMachina@sh.itjust.works
            link
            fedilink
            English
            arrow-up
            30
            ·
            edit-2
            1 个月前

            [Edit : It turns out people have said the same thing while I was looking for the right source to confirm my point, so I guess this comment’s a bit redundant now. Still leaving it in case someone’s interested]

            The number’s correct but…

            Child mortality The most significant difference between historical mortality rates and modern figures is that child and infant mortality was so high in pre-industrial times; before the introduction of vaccination, water treatment, and other medical knowledge or technologies, women would have around seven children throughout their lifetime, but around half of these would not make it to adulthood. Accurate, historical figures for infant mortality are difficult to ascertain, as it was so prevalent, it took place in the home, and was rarely recorded in censuses; however, figures from this source suggest that the rate was around 300 deaths per 1,000 live births in some years, meaning that almost one in three infants did not make it to their first birthday in certain periods. For those who survived to adolescence, they could expect to live into their forties or fifties on average.

            So reaching 50 wasn’t too rare for someone who had survived childhood, and given how people often started having children younger then, that was well enough to be grandparent. Doesn’t mean everyone would’ve gotten to known their grandparents, but it wouldn’t have been super rare either.

      • GBU_28@lemm.ee
        link
        fedilink
        English
        arrow-up
        18
        ·
        edit-2
        1 个月前

        Generally sure. We’ve certainly evolved to want to be around for a while after reproduction though, for example human infants are completely worthless. That doesn’t mean we need to be top notch, but we do need to exist sufficiently to get children to even the most brutal, basic independence.

        Compare that to something that hatches then is already just adulting, like many reptiles.

        I think the keyword is precocial vs altricial

        • Swedneck@discuss.tchncs.de
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 个月前

          Especially considering how reliant we humans are on knowledge, without the previous generation teaching us we’re pretty well doomed.

          Old people would have been highly valued just because they’re sitting on decades of knowledge and wisdom, in an age without permanent records of information grandma would have been the only source of information about the past, and would presumably spend most of their time just sharing that knowledge with everyone else.

    • Showroom7561@lemmy.ca
      link
      fedilink
      English
      arrow-up
      27
      arrow-down
      3
      ·
      1 个月前

      They just didn’t evolve to consume so much sugar.

      Bro, eating oranges puts our tooth enamel in a weakened state. If we were designed, it was by an idiot.

        • Showroom7561@lemmy.ca
          link
          fedilink
          English
          arrow-up
          18
          arrow-down
          1
          ·
          1 个月前

          It’s not the sugar, but the acid that our teeth can’t handle.

          The fact that healthy foods can’t be consumed without a risk of harm is not an intelligent design.

          I mean, even apples (i.e. “Garden of Eden”) can promote the growth of plaque!

            • flicker@lemmy.world
              link
              fedilink
              English
              arrow-up
              10
              arrow-down
              1
              ·
              1 个月前

              If an all-knowing creator didn’t want humans to eat fruit from a specific tree, he shouldn’t have grown that tree in the only garden he had humans in.

                • flicker@lemmy.world
                  link
                  fedilink
                  English
                  arrow-up
                  2
                  arrow-down
                  2
                  ·
                  1 个月前

                  Oh, right. The obedience only matters if you have to make yourself do it. It doesn’t count if it’s natural and painless and costs you nothing. Can’t believe I forgot about that?

                  • Aermis@lemmy.world
                    link
                    fedilink
                    English
                    arrow-up
                    2
                    arrow-down
                    1
                    ·
                    1 个月前

                    It doesn’t seem you believe in much. Be at peace with your natural choices. There will always be a cost

          • psud@aussie.zone
            link
            fedilink
            English
            arrow-up
            3
            ·
            edit-2
            1 个月前

            Cane and Abel tells us the gods don’t like vegetable farmers, that want meat

            Meat doesn’t damage your teeth

            Incidentally the damage from sugar is fermentation - it makes carbonic acid (the stuff that makes soda fizzy) which is a weaker acid than citric

            Citrus didn’t make it to Europe quickly - it came from China

          • Hawke@lemmy.world
            link
            fedilink
            English
            arrow-up
            8
            ·
            edit-2
            1 个月前

            Oranges don’t exist naturally, was the point I was making. Theyre a hybrid, derived at least partly from pomelo.

            • Fushuan [he/him]@lemm.ee
              link
              fedilink
              English
              arrow-up
              5
              ·
              1 个月前

              You are right, it’s just that in Spanish a “pomelo” is a grapefruit, and I was unaware of the whole rabbit hole that is the hybridwtion of the pomelo, mandarin, citrus and all that. I deleted my old comment because I was just confused.

              • Hawke@lemmy.world
                link
                fedilink
                English
                arrow-up
                2
                ·
                1 个月前

                No worries, I don’t know all the details and looking more deeply, it looks to be more complicated than I was remembering too.

    • finitebanjo@lemmy.world
      link
      fedilink
      English
      arrow-up
      6
      arrow-down
      2
      ·
      1 个月前

      Actually a bigger contributor is underdeveloped jaws due to no longer requiring to chew from.a very young age for nutritional requirements.

    • kittehx@lemmy.blahaj.zone
      link
      fedilink
      English
      arrow-up
      3
      arrow-down
      3
      ·
      1 个月前

      Half our expected lifetime was our expected lifetime back when they evolved. Teeth are doing quite well, all things considered.