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Sponsored by the Adolescent Mental Health Initiative of the Annenberg Public Policy Center (APPC) of the University of Pennsylvania and the Annenberg Foundation Trust at Sunnylands Trust, the third edition of Treating and Preventing Adolescent Mental Health Disorders provides a significant update since the second edition in 2017. It addresses the current state of knowledge about the major mental health disorders that emerge during adolescence, including how the COVID-19 pandemic affected adolescent mental health.

Here, experts on adolescent anxiety, schizophrenia, substance use disorders, depression and bipolar disorders, eating disorders, and suicidal behavior thoroughly define each disorder, outline and assess available treatments, discuss prevention strategies, and suggest a research agenda based on what we know and don't yet know about these various conditions. The volume also incorporates chapters on gambling, Internet addiction, and positive youth development, which addresses how we can fully prepare young people to be happy and successful throughout their lives.

Concluding chapters discuss overarching issues regarding the behavioral and mental health of adolescents, including overcoming the stigma of mental illness and the research, policy, and practice context for the delivery of evidence-based treatments. Integrating the work of eminent scholars in both psychology and psychiatry, this work will be an essential volume for academics and practicing clinicians and will serve as a wake-up call to mental health professionals and policy makers alike about the state of our nation's response to the needs of adolescents with mental disorders.

Dwight L. Evans, MD, was Joseph and Madonna di Giacomo Professor Emeritus of Psychiatry and Professor Emeritus of Psychiatry, Medicine, and Neuroscience at Perelman School of Medicine, University of Pennsylvania; Emeritus Department Chair, Psychiatry at University of Pennsylvania; and Emeritus Chief of Psychiatry at Hospital of the University of Pennsylvania, Presbyterian Medical Center, and Pennsylvania Hospital.

Edna B. Foa, PhD, is Professor of Psychiatry at Perelman School of Medicine, University of Pennsylvania and Founder Director of the Center for the Treatment and Study of Anxiety.

Martin E. Franklin, PhD, is Associate Professor Emeritus, Clinical Psychology in Psychiatry at the University of Pennsylvania School of Medicine and Executive Director & OCD Service Line Leader at Rogers Behavioral Health, Philadelphia.

Raquel E. Gur, MD, PhD, is Professor, Psychiatry, Neurology, and Radiology at the University of Pennsylvania and Director, Neurodevelopment & Psychosis Section in Psychiatry at the University of Pennsylvania.

Kyle Kampman, MD, is Professor in the Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania.

Christine Yu Moutier, MD, is Chief Medical Officer at the American Foundation for Suicide Prevention.

Maria A. Oquendo, MD, PhD, is Ruth Meltzer Professor and Chairman of Psychiatry at Perelman School of Medicine, University of Pennsylvania and Psychiatrist in Chief at Hospital of the University of Pennsylvania.

Daniel Romer, PhD, is Director of Research at Annenberg Public Policy Center, University of Pennsylvania.

Moira A. Rynn, MD, is Professor and Chair for the Department of Psychiatry and Behavioral Sciences at Duke University School of Medicine.

Martin E. P. Seligman, PhD, is Zellerbach Family Professor of Psychology at the University of Pennsylvania; Director of the Positive Psychology Network; and Scientific Director of the Values-in-Action Classification of Strengths and Virtues Project, Mayerson Foundation.

Robyn Sysko, PhD, is Associate Professor of Psychiatry, Icahn School of Medicine at Mount Sinai, New York.

B. Timothy Walsh, MD, is Professor of Psychiatry at Vagelos College of Physicians and Surgeons, Columbia University.

Preface
Kathleen Hall Jamieson and Daniel Romer

Introduction
Maria Oquendo

Part I Substance Use Disorders
Chapter 1: The Neurobiology and Genetics of Substance Use Disorder
Chapter 2: Drug Epidemics Affecting Adolescents in the United States
Chapter 3: Transforming Substance Use Prevention and Treatment Services for Adolescents
Chapter 4: The Prevention of Substance Use
Chapter 5: Research Agenda for Prevention of Substance Use Disorders

Part II Youth Suicide and Suicide Attempts
Chapter 6: Defining Youth Suicide
Chapter 7: Universal Approaches to Youth Suicide Prevention in School Settings
Chapter 8: Prevention Strategies for Populations With Elevated Rates of Suicidal Behavior
Chapter 9: Preventive Interventions and Treatments for Suicidal Youth
Chapter 10: Research Agenda for Youth Suicide Prevention

Part III Eating Disorders
Chapter 11: Defining Eating Disorders
Chapter 12: Treatment of Eating Disorders
Chapter 13: Prevention of Eating Disorders
Chapter 14: Research Agenda for Eating Disorders

Part IV Schizophrenia
Chapter 15: Defining Schizophrenia: Phenomenology and Links to Neurobiology
Chapter 16: Treatment of Schizophrenia
Chapter 17: Prevention of Schizophrenia
Chapter 18: Research Programs in Schizophrenia

Part V Anxiety Disorders
Chapter 19: Defining Anxiety Disorders
Chapter 20: Treatment of Anxiety Disorders
Chapter 21: Prevention of Anxiety Disorders
Chapter 22: Research Agenda for Anxiety Disorders

Part VI Depression and Bipolar Disorder
Chapter 23: Defining Depression and Bipolar Disorder
Chapter 24: Treatment of Depression and Bipolar Disorder
Chapter 25: Prevention of Depression and Bipolar Disorder
Chapter 26: Research Agenda for Depression and Bipolar Disorder

Part VII Beyond Disorder
Chapter 27: The Positive Perspective on Youth Development

Part VIII Other Behavioral Disorders
Chapter 28: Adolescent Gambling
Chapter 29: Internet Addiction and Problematic Internet Behavior Among Youth

Part IX Conclusions, Recommendations, Priorities
Chapter 30: Stigma
Chapter 31: An Update on Evidence-Based Practices for Children and Adolescents in the Context of Policy, Research, and Practice: A Systems Perspective
Chapter 32: Conclusion

References
Index