A new report [pdf] from the NYC Health Department and Department of Education finds that physically fit students tend to outscore their less-fit peers on academic tests. During the 2007-2008 school year, students who scored in the top 5% on their fitness tests outscored the bottom 5% by an average of 36 percentile points on standardized academic tests. But it's also possible overweight kids score poorly on those tests because bullies are constantly kicking the backs of their chairs. The new report further examines childhood obesity in NYC and finds that 21% of kindergarten through eighth grade students are obese, and nearly 40% of all students are overweight or obese. In a statement, NYC Health Commissioner Dr. Thomas Farley said, "When four out of 10 school kids are overweight or obese, the city has a problem." Part of that problem is that 14% of middle- and high-school students hadn't even been offered a physical-education class this school year, according to a recent survey cited by the Post.