Second, Secondary data, use this method by finding the information from website or research projects from the internet. Such as in the research project, there’re several secondary data from research projects include the research project of Journal of Pediatric Health Care,21(2007), Effects of the COPE Cognitive Behavioral Skills Building TEEN Program on the Healthy Lifestyle Behaviors and Mental Health of Appalachian Early Adolescents.Journal of Community Health Nursing,18(2001), Use of a Tool to Determine Perceived Barriers to Children's Healthy Eating and Physical Activity and Relationships to Health Behaviors.Journal of Applied Social Psychology, 29 (1) (1999), A systematic literature review and meta-analysis: The Theory of Planned Behavior's application to understand and predict nutrition-related behaviors in youth