10 facts about infidelity

ideas.ted.com

Love isn’t so much an emotion, says biological anthropologist Helen Fisher, as it is a brain system, one of three that’s related to mating and reproduction. It’s those other two systems that explain why human beings are capable of infidelity even as we so highly value love. Here Fisher explains more about cheating — why it occurs, how common it is and how a study shows it could potentially correlate to a gene.

1. Pairbonding is a hallmark of humanity. Data from the Demographic Yearbooks of the United Nations on 97 societies between 1947 and 1992 indicate that approximately 93.1% of women and 91.8% of men marry by age 49. More recent data indicates that some 85% of Americans will eventually marry.

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2. However, monogamy…

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