Co-twin relationship quality as a moderator of genetic and environmental factors on urinary cortisol levels among adult twins.

ABSTRACT: Previous research has indicated that genetic and environmental factors shape physiological activity. Cortisol levels, in particular, have received significant attention, with studies indicating substantive heritability estimates across various sampling techniques. A related line of research has indicated that genetic and environmental factors that explain variability in cortisol levels may vary across context and experiences by way of gene-environment interactions (G × Es). Despite these findings, a limited number of studies have examined the extent to which interpersonal relationships may operate as a moderator. The current study focused on co-twin relationship quality as a source of moderation, as twins are more likely to have contact with one another and to form close, interpersonal rel

SUBMITTER: Schwartz JA 

PROVIDER: S-EPMC9380901 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature