Men are more likely to cheat than women. So says a new study by Texas A&M and UT researchers who found men have stronger sexual impulses.

But Houston relationship expert Nancy Pina says women shouldn't assume men will cheat because that can become a self-fulfilling prophecy.

"I do not believe that having the mindset that all men are going to cheat is beneficial because if you start thinking that way you will draw that experience into your life."

Pina says men and women cheat because they're missing some sort of emotional fulfillment in the relationship. And she says it takes two to tango.

"Absolutely, they're both responsible for their actions. A woman who sees a man such as Tiger Woods and he is looking for that and she agrees to it; she knows exactly what she's getting into."

The study says it’s not that men have less self-control than women; they're just more obsessed with the physical aspect of sex.