Mental health & wellbeing

# Mental Health & Wellbeing Domain Description

Mental health and wellbeing encompasses psychological functioning, emotional resilience, mood regulation, stress management, cognitive performance, and overall quality of life. This domain is fundamental to health because mental and emotional states profoundly influence physical health outcomes, immune function, sleep quality, cardiovascular health, and longevity. Mental health challenges are among the most prevalent health concerns globally, affecting work productivity, relationships, and daily functioning. Unlike some health domains focused on treating specific diseases, mental wellbeing interventions often aim to build resilience, optimize emotional regulation, and maintain psychological functioning across the lifespan. The evidence base for this domain spans neuroscience, psychology, nutrition, and behavioral medicine, with varying levels of research support across different interventions.