Is There Really an Infidelity Gene and What Does it Mean For Your Relationship?
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A new gene discovered by scientists is being called the “infidelity gene,” but what does that actually mean, and is the name truly rooted in the scientific discovery?
Scientists at Karolinska Institutet have found a link between a specific gene and the way men bond to their partners. The same gene has been previously studied in voles, where it has been linked to monogamous behavior in males, but this is the first time that a specific gene variant has been associated with male bonding.
The Genetic Link and How it Affects Relationships
The effect of this variation is relatively small, and it cannot be used to predict with any real accuracy how someone will behave in a future relationship.
Hasse Walum, postgraduate student at the Department of Medical Epidemiology and Biostatistics, and his team found that men who carry one or two copies of a variant of a particular gene linked to hormone receptors, allele 334, often behave differently in relationships than men who lack this gene variant.
According to the study, the incidence of allele 334 was statistically linked to how strong a bond a man felt he had with his partner. Men who had two copies of allele 334 were also twice as likely to have had a marital or relational crisis in the past year than those who lacked the gene variant.
There was also a connection between the men’s gene variant and how happy their partners were with their relationship.
"Women married to men who carry one or two copies of allele 334 were, on average, less satisfied with their relationship than women married to men who didn’t carry this allele", says Hasse Walum.
It’s Not All About Genetics
A related study was carried out several years ago, in which researchers focused on women who were twins and found that if one of a pair of twins had a history of infidelity, the chances her sister would also stray were about 55%. It found the tendency for both twins to be either faithful or unfaithful was strongest in identical pairs who have identical genes.
The executors of the study stressed that genes alone did not determine whether somebody was likely to be unfaithful. Much could be boiled down to social factors as well.
I’ve found similar things throughout my years as a therapist and believe that certain people ARE genetically predisposed to have a more difficult time being faithful. I call it the bio-chemical craving for connection.
Where Infidelity Comes From
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About the author: To learn more about Dr. Bonnie Eaker Weil, check out her latest book Financial Infidelity.
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