• acosmichippo@lemmy.world
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      3 hours ago

      https://en.wikipedia.org/wiki/Human_jaw_shrinkage

      The main contributing factor to the recent increase in malocclusion is widely considered to be due to a sharp reduction in chewing stress, especially during critical periods of craniofacial growth.[10][1] Experiments done on non-human subjects have shown that induced nasal blockages and/or dietary changes earlier in life lead to maladaptive morphological change in their jaws, intended to simulate what we are observing globally in human children.[4] Significant craniofacial changes due to diet have even been experimentally shown in pigs during development; researchers fed groups either a hard-consistency diet or a soft-consistency diet, for eight months in total.[11] Drastic differences in jaw and facial musculature, facial structure, and tooth-crowding were observed; researchers directly related the findings to what we are observing more in human populations.[11]

      so too much damn baby food?

      • Caesium@lemmy.world
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        2 hours ago

        more like eating more processed food. and I mean like ‘gone through a cooking process’ kind of way. We do a lot more now than just burn our meat and eat veggies raw to get nutrients. we simply just don’t need to work our jaws so hard to get what we need

        if only my wisdom teeth got the memo :+:

    • brillotti@lemmy.world
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      4 hours ago

      Our food is way softer so we don’t chew enough to maximise the growth of our maxillae and jaws.

    • cannedtuna@lemmy.world
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      4 hours ago

      I think I’d read before that it was because most of our foods now are soft foods so our teeth/jaws are not as strong.

    • Mango@lemmy.world
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      4 hours ago

      Everyone who’s replied to you so far are wrong and speculating. The real issue is actually lack of nutrition and exercise for the mouth. We’re not growing our jaws out quite right while our teeth are coming in.

        • Mango@lemmy.world
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          2 hours ago

          I’ll admit I don’t have a citation. I just remember it from a video about how this African dude had magnificent teeth because of the environment he grew up in.

          Edit: Oh nice, you found a wiki page which validates my thing!

    • DaddleDew@lemmy.world
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      3 hours ago

      Before we cut our food in perfectly sized bites with utensils our ancestors used to do it by biting into large pieces of food with their front teeth. That would wear them down evenly to form a nice flat bite.

      I wouldn’t be surprised if that’s the skeleton of someone who died way younger than we think as well.

    • ZoomeristLeninist [comrade/them, she/her]@hexbear.net
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      3 hours ago

      im p sure it has to do with stuff being easier to eat. we dont have to work with our jaw to tear or crush difficult foods since everything is processed or we have tools to make it easy. our jaws are underused, so they develop to be smaller than theyre supposed to be, and our teeth get crowded

    • PhlubbaDubba@lemm.ee
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      43 minutes ago

      Kinda? Humans consume a lot more sugar than they did 10,000 years ago, in addition to other foodstuff that are terrible for your teeth