Explore a comprehensive physician grand rounds presentation on adolescent mental health disorders, focusing on Attention Deficit Hyperactivity Disorder (ADHD), Disruptive Mood Dysregulation Disorder (DMDD), and Major Depressive Disorder. Delve into the developmental impacts, diagnostic criteria, comorbidities, and treatment options for these conditions. Examine the neurobiological underpinnings, including brain structure and function changes, and learn about the latest research on emotion regulation in ADHD. Gain insights into the overlap between ADHD and emotion dysregulation, and understand the importance of accurate diagnosis and appropriate interventions for adolescents struggling with these complex disorders.