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Monday
Dec062010

Thrill-Seeking Gene May Lead to Promiscuous Sex, Cheating

Photo Courtesy - Getty Images(NEW YORK) -- In what is being called a first-of-its-kind study, researchers at Binghamton University, State University of New York (SUNY) have discovered that about half of all people have a gene that makes them more vulnerable to promiscuity and cheating.

Those with a certain variant of the dopamine receptor D4 polymorphism -- or DRD4 gene -- "were more likely to have a history of uncommitted sex, including one-night stands and acts of infidelity," according to lead investigator Justin Garcia.

DRD4 is the "thrill-seeking" gene, also responsible for alcohol and gambling addictions. The gene can influence the brain's chemistry and subsequently, an individual's behavior.

The desire to cheat or sleep around seems to originate in the brain's pleasure and reward center, where the "rush" of dopamine motivates those who are vulnerable, the researchers say.

Copyright 2010 ABC News Radio

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