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The Larger Brains of Humans Come With a Tragic Cost, Study Finds

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Heinrich Heine University neuroscientist Sam Vickery and colleagues have found extra capacity we've developed has made our gray matter more vulnerable to the impacts of aging.

The prefrontal cortex is among the first regions to be impacted by such age-associated changes.

The researchers found no association between brain expansion and age-related decline in comparisons between the chimps and baboons.