This document discusses adolescence, defining it as the transitional period between childhood and adulthood that involves significant physical, emotional, and social changes. It notes adolescence typically occurs between ages 11-19 and can be divided into early, middle, and late stages. Key characteristics of adolescence include physical and sexual development, a desire for independence, identity formation, and career preparation. The document also examines Erikson's stages of psychosocial development and Marcia's identity statuses, highlighting the importance of exploration and commitment during identity formation in adolescence. Finally, it discusses common stressors adolescents face and effective stress management techniques.