http://www.washingtonpost.com/national/health-science/physically-fit-students-do-better-in-school-than-others-study-finds/2012/12/14/6e181614-6a25-11e1-acc6-32fefc7ccd67_story.html
/ fitness body fat exercise cardiorespiratory endurance flexibility muscular strength endurance school year grades core academic areas English math science world studies nationally standardized test /
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