Infidelity Might Be in the Genes - Yahoo! News
Genetics might help explain why some people are more prone to infidelity and promiscuity, says a new study.
Researchers analyzed the DNA of 181 young adults who provided a complete history of their sexual activity and intimate partnerships. They concluded that the dopamine receptor D4 (DRD4) gene plays a major role in sexual behavior.
"The motivation seems to stem from a system of pleasure and reward, which is where the release of dopamine comes in. In cases of uncommitted sex, the risks are high, the rewards substantial and the motivation variable -- all elements that ensure a dopamine 'rush,'" Garcia explained.
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