Psychological well-being refers to both a theory and measurement scales designed and advocated primarily by Carol Ryff. In her seminal paper, "Happiness is everything, or is it? Explorations on the meaning of psychological well-being." she contrasts this with subjective well-being or hedonic well-being. Ryff attempted to combine different conceptions of well-being from the ancient Greek to the modern psychological such as theories of Individuation from Carl Jung, Self-actualization from Abraham Maslow and others.
- Personal growth
- Purpose in life
- Environmental mastery
- Positive relations with others
Individual differences in both overall Eudaimonia, identified loosely with self-control and in the facets of eudaimonia are heritable. Evidence from one study supports 5 independent genetic mechanisms underlying the Ryff facets of this trait, leading to a genetic construct of eudaimonia in terms of general self-control, and four subsidiary biological mechanisms enabling the psychological capabilities of purpose, agency, growth, and positive social relations.
See also 
- Meaningful Life
- Subjective well-being
- Positive Psychology
- Subjective vitality
- Ryff, Carol D. (1 January 1989). "Happiness is everything, or is it? Explorations on the meaning of psychological well-being.". Journal of Personality and Social Psychology 57 (6): 1069–1081. doi:10.1037/0022-35220.127.116.119.
- Archontaki, Despina; Lewis, Gary J.; Bates, Timothy C. (1 March 2012). "Genetic influences on psychological well-being: A nationally representative twin study". Journal of Personality: n/a–n/a. doi:10.1111/j.1467-6494.2012.00787.x.