Abstract
This chapter explores adolescence and emerging adulthood as socially constructed and culturally bound transitional phases between childhood and adulthood. It illustrates how these developmental periods are experienced differently by youth located in “tight” versus “loose” cultures. The authors also offer a review of the central aspects of well-being during these two developmental stages, while recognizing complexity of these stages as being simultaneously universal and contextually bound. The authors argue for a clear distinction between well-being and the absence of pathology and welfare, and they advance recommendations for youth wellness promotion by bringing together the developmental, cultural, and applied approaches to adolescent and emerging adult development. Finally, the authors advocate for the meaningful, active and culturally-sensitive integration of young people within “adult” society to maximize the future of youth throughout the world.