Genetical, Environmental and Personality Factors Influencing the Age of First Sexual Intercourse in Twins

In: Journal of biosocial science: JBS, Band 9, Heft 1, S. 91-97

Abstract

SummaryA study of MZ and DZ twins suggests that cultural differences are less important than individual environmental experiences in determining the age of first sexual intercourse. Certain personality factors are found to be correlated with this trait and there is also evidence that genetical differences may predispose individuals to cross this threshold at an earlier or a later age.