Adult mental health is a multidisciplinary field of research and an academic concept dedicated to the comprehensive study of psychological, emotional, and behavioral states, disorders, and well-being in individuals typically aged 18 and older. It investigates the complex interplay of biological, psychological, social, and environmental factors influencing mental health across the adult lifespan, aiming to advance understanding, assessment, prevention, and intervention strategies for both psychopathology and positive mental functioning within this demographic.