Genetics May Play Role For Women Who Cheat, University of Queensland Study

Does cheating run in families? Is infidelity, in fact, genetic? A recent study of 7,378 Finnish people between the ages of 18 and 49 uncovered a genetic component to bed-hopping. Surprisingly, the researchers found a link between specific mutations of a receptor gene for vasopressin and infidelity in women... but not men.

Vasopressin is a hormone that is synthesized in the hypothalamus and stored in the posterior pituitary. From there, the hormone is secreted into the bloodstream; however, some of the hormone may release directly into the brain. Recent research suggests vasopressin impacts our trust and empathy levels, playing an important role in bonding, social behavior, and sexual motivation.

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