Adolescents and Youth: Setting the Context

Adolescence and youth are increasingly recognised as significant stages in development that have not received the attention required. The definitions of these phases are not precise, and early childhood and old age have been a priority as health was more precarious at these times of the life cycle. This chapter provides an overview of adolescence and youth and seeks to make a case for why additional attention to this subpopulation is necessary. This takes into consideration demographic and developmental factors as well as those related to health and well-being. The chapter then considers the overall situation of adolescents and youth, with emphasis on the gaps or lags in information as well as in progress. The importance of informed and strategic investment in young people is explored. Finally, this introductory chapter provides a brief outline of the structure of the rest of the book.