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"Poor physical fitness in middle age may be linked to a smaller brain size 20 years later, according to a study published in the February 10, 2016, online issue of Neurology, the medical journal of the American Academy of Neurology."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2016-02-couch-potatoes-smaller-brains-life.html>