GREENSBORO, North Carolina, Aug. 21 (TNSjou) -- The University of North Carolina Greensboro campus issued the following news: * * * Just nine minutes of exercise can improve children's academic performance, UNCG researcher finds UNCG Assistant Professor Eric Drollette begins each semester in the same, unexpected way. He asks, "Does anybody here get up at 4 a.m. to milk cows?" His question reminds students that academic success can arise from a variety of backgrounds. It was Drollette's own   more