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Some people have a gene associated with happy marriage, scientists find



The secret of happy marriage can be hidden in DNA, according to a new study.

Yale researchers identified the genes of some people associated with reports of successful relationships.

While long-term bonds are a complex combination of physical attraction, shared interests and values, scientists say their results are a proof of the genetic role of marriage bliss.

Based on a study of nearly 200 married couples, scientists estimate that about 4 percent of people's differences in marriage satisfaction may be related to the presence of this gene.

The gene variations they identified were an oxytocin receptor – a "love hormone" that, as we know, plays a role in the social link, and links between mother and child.

People with this gene variant, known as the GG genotype, are already known to have greater empathy, sociality, and emotional stability.

Given the inherent qualities that could contribute to a happy and successful marriage, it is perhaps not surprising that it was a common DNA content for spouses.

Each participant in the study, who had couples aged 37 to 90 years, had to complete a survey of their feelings of safety and satisfaction in their marriages.

They then had to give a saliva sample that the researchers could check for the presence of the genes in question.

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Results published in the magazine PLOS ONEnote the first link between GG genotype and marital success, and scientists said they are now planning to investigate its impact on a wider group of people.

"This study shows that the way we feel in our close relationships is more than just exchanging our shared experience with our partners over time," said Dr.

"In marriage, people are also affected by their own and their partner's genetic predispositions."


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