Humans heal skin wounds nearly three times slower than primates, a new study reveals. The reason lies in our evolutionary loss of body hair, which improved sweat-based cooling but reduced healing speed. Unlike our hairy relatives, human skin developed a thicker barrier and slower cell turnover to compensate for the lack of fur. This trade-off highlights how evolutionary gains, like thermoregulation, can come at the cost of slower recovery from injuries.
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Why do humans heal slower than our hairy relatives?
