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Genes May Make Men Less Monogamy-Friendly

Some men may be more predisposed than others -- by their genes -- to encounter difficulties in monogamous relationships, including marriage, a Swedish study indicates.

The research out of Stockholm's Karolinska Institute suggests two-out-of-five men have the DNA pattern that makes them less able to commit to a stable relationship, according to The Early Show's Dr. Debbye Turner Bell.

And that, she points out, raises the question of whether women would or should want to know beforehand which type of genetic mix they're getting themselves into with a guy.

On The Early Show Wednesday, psychologist Dr. Jennifer Hartstein addressed, among other things, whether these findings will give men one more excuse to fail to commit fully.