Boys need gym class. But girls need it more, according to the Centers for Disease Control.

It's clear following a survey of 5,000 students ranging from kindergarten to fifth grade that girls who got 70 to 300 minutes of physical education per week scored higher on standardized tests. Funny because gym classes are being increasingly scaled back to make room for academics and testing when if the exercise was instead more frequent, girls would do even better. They'd concentrate better too. And participate more in class. Not so true for the boys, though.

The CDC study found no correlation between gym class and test scores for boys, maybe because they play more actively and physically during recess and outside school.