Please find some links that highlight implications for increased Physical Activity and healthy eating.
http://www.sparkpe.org/blog/healthy-body-healthy-mind-the-benefits-of-physical-activity-in-school/
http://www.sausd.us/Page/14836
http://www.nutritionist-resource.org.uk/content/healthy-eating-for-kids.html
http://kidshealth.org/en/parents/exercise.html
http://www.mayoclinic.org/healthy-lifestyle/fitness/in-depth/exercise/art-20048389/