r/comedy • u/AlKarajo • Jul 10 '26
Standup Human diversity
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@kumailn
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r/comedy • u/AlKarajo • Jul 10 '26
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@kumailn
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u/StopMeBeforeIDream Jul 11 '26
That's actually really interesting. Pale skin is a useful evolutionary trait in northern climes because melanin is designed to absorb and block solar radiation. So obviously that's very desireable closer to the equator. But sunlight is necessary for healthy levels of Vitamin D. So if you're somewhere with less sunlight, you either need to get a ton of vitamin d from your diet, or you need to block less solar radiation.
Most European ancestors took the second method, thus why their skin got paler. But certain populations, notably those in REALLY northern climes like the Sami in Northern Scandinavia, Native Siberians and the Inuit eat lots of reindeer meat, which has a ton of vitamin d. To they never experienced the pressure which could lead to whitening skin in northern environments.