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They also used advanced computer modeling to produce maps of atmospheric ... widespread declines in IQ levels of at least two to three points among the European population. "This is the first ...
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Widespread lead pollution in the Roman era made led to a drop in IQ across Europe, study suggestsThe researchers used advanced computer modeling to produce maps of atmospheric ... "A 2 to 3 points lower IQ doesn't sound like much, but when you apply that to the entire European population ...
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