participants self reported their level of physical activity with the adolescent Activity Questionnaire, which is based on the validated self. administered physical activity assessment tool developed for NHS II. We dichotomized physical activity as 2 i h or 1 h of activity/day based on recommendations from the Centers for Disease Control and prevention. Sleep duration. Participants self-reported their sleep duration with an item reading: "In a typical 24 h, how many hours of sleep do you get?" Eight response options ranged from"less than 5 h" to"11 or more hours. We categorized sleep duration as 9 h category, we ay and 9 h/day into a single collapsed the 7-9 category Fast food intake. Participants self-reported their fre- quency of eating foods from a fast food restaurant(ie KFC and dichotomized frequency of fast food intake as 21 servings serving week 49, 50] Sugar sweetened beverage intake. Participants self reported their intake of sugar sweetened beverages including soda and fruit drinks, using items from the dolescent Food Frequency Questionnaire[51]. dichotomized servings of sugar sweetened beverages 21 aylor servings day