August 10, 2011, 12:01 am, By GRETCHEN REYNOLDS, New York Times Christopher FutcherIf you want a young person to focus intently in school and perform well on tests, should you first send him or her to gym class? That question, which has particular relevance for school districts weighing whether to reduce or ax their physical education programs to save money, motivated a number of stimulating new examinations into the interplay of activity and attention. Some of the experiments studied children; others looked at laboratory rats bred to have an animal version of attention deficit disorder. For both groups, exercise significantly affected their ability to concentrate, although some activities seemed to be better than others at sharpening attention.To read more of this article, please read it at the New York Times.