The document discusses concepts of mental health and well-being according to various experts and organizations. It defines mental health as including emotional, psychological, and social well-being that determines how people think, feel and act when coping with life. Mental health affects people at every stage of life. The World Health Organization identified six concepts of mental health: subjective well-being, perceived self-efficacy, autonomy, competence, intergenerational dependence, and self-actualization of one's potential. Maintaining good mental health requires developing resiliency and adaptability skills.