What is the ‘happy marriage’ gene?

New study finds link between marital bliss and genetic variation associated with social bonding

wedding, marriage
(Image credit: Phil Walter/Getty Images)

Living happily ever after with your true love may be written not in the stars but in your DNA, according to a new study that identifies a gene linked to sustaining a successful relationship.

Researchers at Yale University examined the genetic profile of 178 married couples using saliva samples, and also quizzed each volunteer on their satisfaction and feelings of security in their marriage.

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