This document provides an introduction to mental health. It defines mental health as a state of well-being where a person understands their abilities, can cope with stress, work productively, and contribute to their community. Mental health is influenced by both individual factors like genetics and environmental factors like relationships and life experiences. The document discusses characteristics of mentally healthy people like effective self-perception, self-esteem, control of behavior, and sustaining relationships. It also defines mental illness as a diagnosable impairment affecting cognitive, emotional, or social functioning that requires clinical treatment approaches.