A quote from the article:
The survey looked at nearly 20,000 Danish kids between the ages of 5 and 19. It found that kids who cycled or walked to school, rather than traveling by car or public transportation, performed measurably better on tasks demanding concentration, such as solving puzzles, and that the effects lasted for up to four hours after they got to school.Our Safe Routes Philly program helps Philadelphia schools encourage safe bicycling and walking to school. Interested in learning how we can help your school get organized or acquire funding or curriculum? Contact us. It's never too late to give your students a health and educational step up.