Wellbeing is defined by what people perceive about their lives, such as the quality of their relationships, their positive emotions and resilience, the realization of their potential, or their overall satisfaction with life. Higher levels of well-being are associated with decreased risk of disease, illness, and injury; better immune functioning; speedier recovery; and increased longevity. mentally, physically and spiritually according to the CDC. Individuals with high levels of well-being are more productive at work and are more likely to contribute to their communities.

Research shows that positive emotions—central to well-being—are not merely the opposite of negative emotions, but are independent dimensions of mental health that can, and should be developed.