By David Oria There exist a large body of research in the area of childhood psychology that has examined the effects of sleep on behavioral issues in adolescents. In many of these studies, the behavioral problems explored were categorized into two: internalizing difficulties or externalizing difficulties. In the world of psychology, internalizing difficulties are behaviors that result from difficulty coping with negative emotions or stressful situations, so they directed inward (eg. withdrawal, loneliness, fearfulness, […]