Want your daughter to do better in school? Tell her to work out! The CDC reports that attendance in phys. ed. classes might be related to higher academic achievement for elementary-age school girls. (Oddly, no such correlation was found for boys.) But not all girls are lucky enough to even get the chance to take P.E. class: Amnesty International has released a new report that many girls in developing countries are skipping school, fearing abuse from teachers and other officials. Even in the U.S., 83% of girls have experienced sexual harassment of some kind while at school. Maybe a further argument for single-sex education? [USA Today; Guardian]