"Prior to the emergence of modern medicine, sanitation practices...the average mortality rate was roughly 25% for infants and 40–50% for children across human evolution. That is, nearly half of our would-be ancestors did not survive to reproductive age." https://t.co/UWqBeity8u pic.twitter.com/ZsUtPuPP9s
— Rob Henderson (@robkhenderson) January 1, 2024
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