The combined impact of diet physical activity sleep and screen time on academic achievement: a prospective study of elementary school students in Nova Scotia Canada

摘要

BackgroundFew studies have investigated the independent associations of lifestyle behaviors (diet, physical activity, sleep, and screen time) and body weight status with academic achievement. Even fewer have investigated the combined effect of these behaviors on academic achievement. We hypothesize that the combined effect of these behaviors will have a higher impact on academic achievement than any behavior alone, or that of body weight status.