High screen time is associated with unhealthy eating behavior,low levels of physical activity, delayed bedtime and poorer school performance among adolescents

This present study aimed to (1) examine screen time among Norwegian adolescents in high schools in the south of Norway, and (2) investigate the relationship between screen time activity and physical activity level, meal pattern, dietary habits, bedtime habits, school performance, smoking, snuffing, overweight/obesity, and paternal- and maternal education. The master thesis includes an introduction part, an elaboration of the theoretical and methodical aspects of the study and discussion of methodology, and finally the article that summarizes the results. In the introduction a brief elaboration is described of the development and accessibility of screen time activity and the way screen time behavior is associated with physical- and mental health aspects, detrimental behaviors, and other health related factors. After introduction, national and international prevalence rates of screen time activity among adolescents is presented, followed by a presentation of the different factors analyzed in the present study, and in what way they affected with health aspects, and determinates of influence. At the end of this master thesis follows an article, which is prepared according to the guidelines for submission to BMC Public Health