Background: This study evaluated the effect of the school-based intervention Charge Your Brainzzz on adolescents' social-cognitive determinants, sleep hygiene and sleep duration and quality. Methods: A cluster-randomized controlled trial was conducted with 972 students from 10 Dutch high schools. Schools were randomly allocated to the intervention…

Brief description of a series of investigations designed to determine the relative effectiveness of various motivators in effecting oral hygiene behavior in a group of junior high school. Presented at the annual meeting of the American School Health Association, San Diego, California, 1972. (JC)

Important findings of the study indicate that regular cigarette smokers yield less to any smoking behavior changes than do the occasional smokers and well organized and executed anti smoking education programs should start as early as the eighth grade. (Author)