This, along with our jones for ultraprocessed foods, is why research from the CDC shows that we modern humans are fatter and less muscular than we were a decade ago. Which was when we were fatter and less muscular than we were the decade before that, and so on. Scientists say our impossible laziness—once exceedingly rare—is leading to dangerously low levels of muscle. This condition is called sarcopenia, which is the loss of muscle mass and function, and it’s now creeping into younger populations for the first time in any species in all of history. Humans are slowly becoming as unique for our
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