REFERENCE

Centers for Disease Control and Prevention. ( 2010). Vital Signs. Retrieved from http://www.cdc.gov/VitalSigns/pdf/2010-08-vitalsigns.pdf

Centers for Disease Control and Prevention. (2011). Overweight and obesity. Retrieved from http://www.cdc.gov/obesity/causes/index.html

Epidemicobesity. (2011). Epidemic obesity and childhood. Retrieved from http://www.epidemicobesity.com/

University of Kentucky. (2011). Health and wellness. Retrieved from http://www.uky.edu/HR/wellness/Walking.html

World Health Organization. (2011). Obesity and overweight. Retrieved from http://www.who.int/mediacentre/factsheets/fs311/en/index.html