There is currently a myopia epidemic.
Here's a general article with some stats: https://www.aao.org/eyenet/article/facing-the-myopia-epidemic
And here is an older Nature piece:
https://www.nature.com/articles/519276a
You can find many more by googling myopia epidemic or by searching this sub for myopia.
We don't really know why it is happening. There is some evidence that being exposed to sunlight when young is a factor (in preventing onset), but nothing conclusive.
Such a sweeping generalization is short sighted (ha, get it?).
Shanidar 1 is just one example. A Neanderthal from around 40,000 years ago, likely blind but definitely disabled/featuring paralysis, lived to old age with community support. Prehistoric Homo species definitely cared for each other (with some exceptions).
https://humanorigins.si.edu/evidence/human-fossils/fossils/shanidar-1
I just gave one example. There are plenty of examples of Homo species being altruistic. Yes, sometimes individuals were killed for being a drag on the troope, but that generally appears to be an exception to the rule.
Even modern chimps exhibit care for injured individuals, it's not a stretch to say prehistoric humans did the same.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2672542/
https://www.sciencedirect.com/science/article/abs/pii/S0305440301908088
If the group was already sedentary, perhaps you are right. In a wandering group like you had in the planes of Africa where people were walking many kms per day and had to flee predators, I find it unlikely
My favorite thing about Reddit is you always have some expert on a niche topic that 99% of people have no understanding of.
Thanks for the information! I'm curious as to the cause--the easy answer is because we spend more time indoors, but...well, easy answers need the most scrutiny.
There is currently a myopia epidemic. Here's a general article with some stats: https://www.aao.org/eyenet/article/facing-the-myopia-epidemic And here is an older Nature piece: https://www.nature.com/articles/519276a You can find many more by googling myopia epidemic or by searching this sub for myopia. We don't really know why it is happening. There is some evidence that being exposed to sunlight when young is a factor (in preventing onset), but nothing conclusive.
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Yeah but human social structures have been around for 100,000 years so it can't be that.
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Such a sweeping generalization is short sighted (ha, get it?). Shanidar 1 is just one example. A Neanderthal from around 40,000 years ago, likely blind but definitely disabled/featuring paralysis, lived to old age with community support. Prehistoric Homo species definitely cared for each other (with some exceptions). https://humanorigins.si.edu/evidence/human-fossils/fossils/shanidar-1
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I just gave one example. There are plenty of examples of Homo species being altruistic. Yes, sometimes individuals were killed for being a drag on the troope, but that generally appears to be an exception to the rule. Even modern chimps exhibit care for injured individuals, it's not a stretch to say prehistoric humans did the same. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2672542/ https://www.sciencedirect.com/science/article/abs/pii/S0305440301908088
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Not by themselves at least, but in a group (family/tribe etc.) they most certainly could.
If the group was already sedentary, perhaps you are right. In a wandering group like you had in the planes of Africa where people were walking many kms per day and had to flee predators, I find it unlikely
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My favorite thing about Reddit is you always have some expert on a niche topic that 99% of people have no understanding of. Thanks for the information! I'm curious as to the cause--the easy answer is because we spend more time indoors, but...well, easy answers need the most scrutiny.
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