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But genetically we come from nomadic tribes, and AFAIK the nomads of a 100000 years ago, had a far shorter average lifespan than after we settled and began farming.

This is mainly because of child mortality. When you get five children, of which two live to be 78 and 89 and the other three die at ages of 2, 14, and 8, your children’s average lifespan is 38,2 years. Typically, you either died very young, or you lived old. And the average is, well, the average of those. Basically nobody died around the age of 38.

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Buffalox@lemmy.world ⁨3⁩ ⁨weeks⁩ ago
Tribal nomads of 100000 did not live to their 60’s.
AFAIK they rarely lived beyond 30.

discovermagazine.com/what-was-the-life-expectancy…

Other research reveals that the lifespan of Homo sapiens may have changed from the Middle Paleolithic to the later Upper Paleolithic, since the ratio of older to younger remains increases. The same research shows that starting about 30,000 years ago at the beginning of the Upper Paleolithic, the average lifespan began to push past 30 years.

Note that Lifespan is not the same as life expectancy:

my.clevelandclinic.org/health/articles/lifespan

Lifespan is the maximum length of time that a person can live

So 30000 years ago 30 years was pretty much the maximum age a person could achieve.

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- Tuuktuuk@piefed.ee ⁨3⁩ ⁨weeks⁩ ago
  
  Note that Lifespan is not the same as life expectancy
  
  In this article it is, though. That’s why they use the phrase “average lifespan”. There is no “average” in maximum.
  In the article the phrase “average lifespan” is used in the meaning “average life expectancy”.
  
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  - Buffalox@lemmy.world ⁨3⁩ ⁨weeks⁩ ago
    Average disregarding race or culture.
    
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