The Structure of the Genetic and Environmental Influences on Mental Well-Being.

• Autores: Corey L.M. Keyes, John M. Myers, Kenneth S. Kendler
• Localización: American journal of public health, ISSN 0090-0036, Vol. 100, Nº. 12, 2010, págs. 2379-2384
• Idioma: inglés
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• Resumen

  • Objectives. We sought to investigate the structure of the genetic and environmental influences on 3 measures of mental well-being. Methods. Analyses focused on the subsample of 349 monozygotic and 321 dizygotic same-sex twin pairs from a nationally representative sample of twins who completed self-report measures of emotional, psychological, and social well-being. Results. The best-fit model contained a common pathway to all 3 measures of well-being, no shared environmental effects, and 1 set of parameters for men and women. Heritability for the latent "mental well-being" factor was high (72%) and best indexed by psychological well-being. Moderate trait-specific genetic effects were seen for emotional and social well-being. Nonshared environmental effects for all measures were mostly trait specific. Conclusions. Genetic influences on the measures of mental well-being reflect a single, highly heritable genetic factor, although some trait-specific genetic influences were seen for emotional and social well-being. Moderate proportions of environmental influences were also shared, but the majority of unique environment was trait-specific. [ABSTRACT FROM AUTHOR]