It is estimated that 65% of divorces occur ?because of an extra-marital affair. And, despite the sexual revolution and the reduction of the “double standard,” more men still cheat than women. Now science shows us why this gender imbalance might exist.

First, there could be a genetic link. Swedish researchers recently identified an “infidelity gene,” which is present in four of 10 men. This gene can explain why some men are more prone to stormy relationships and bond less to their wives or girlfriends. However, it’s important to remember that biology is not destiny. People born with genetic predispositions to say, heart disease or obesity, make lifestyle adjustments that compensate for the negative gene.

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