Chronic diseases and premature death can often be linked to social, environmental, and behavioral factors that are subject to modification, especially during adolescence when many habits--both good and bad--are formed. In order to effectively encourage good health-related behaviors among adolescents, health providers need an integrated understanding of the many factors involved. This volume fills that need by providing the most comprehensive, up-to-date review of the pertinent issues, including in-depth discussions on adolescent sexuality, substance abuse, the future of adolescent health promo.