7 things science says predict divorce

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It's not all guesswork.

No one can say with 100% certainty that a couple is heading for disaster.

But social scientists have gotten pretty good at predicting who's most likely to wind up there. These couples share certain commonalities - in the way they fight and the way they describe their relationship, but also in their education level and employment status.

Below, Business Insider has rounded up seven factors that predict divorce.