This document discusses adolescent risk behaviors and provides data on common risks such as injuries, violence, suicide, substance use, sexual behaviors, and obesity. It notes that risk-taking is part of adolescent development as teens separate from parents and form their identity. While some risk is normal, behaviors like drinking, drugs, unprotected sex can lead to significant health issues. The document reviews national and local data on the prevalence of different risks and associated morbidity and mortality. It discusses screening and counseling approaches and conceptual models like the Transtheoretical Model of behavior change to help address risk behaviors in clinical practice.