Martin Seligman's multidimensional theory of psychological well-being, PERMA (positive emotions, engagement, relationships, meaning, and accomplishment), was empirically tested on a sample of Australian male students (age 13-18). Researchers selected a subset of theoretically relevant items from an extensive well-being assessment. Four of the fiver PERMA elements emerged from a factor analysis, along with two ill-being factors.
Positive psychological well-being, especially optimism, protects against the incidence, and somewhat against the progression, of cardiovascular disease through a broad array of mechanisms, according to this extensive literature review.
Research suggests that optimistic individuals are more likely to live a healthier and longer life. However, more longitudinal studies are necessary to learn more about when, why, how and for whom optimism plays a role in good health and whether interventions that enhance optimism will yield health benefits.