US - While concrete evidence is hard to come by, the general consensus is that men - especially powerful men - cheat more than women, researchers said.
And now a new study attempts to explain why: men have stronger sexual impulses than women, but not weaker self-control.
Previous research has shown that men are more likely than women to pursue romantic partners who are "off limits", the researchers said, but the motivations behind that have been largely unexplored.
"Overall, these studies suggest that men are more likely to give in to sexual temptations because they tend to have stronger sexual impulse strength than women do," says study author Natasha Tidwell, a doctoral psychology student at Texas A&M University.
"But when people exercise self-control in a given situation, this sex difference in behaviour is greatly reduced," she said. "It makes sense that self-control, which has relatively recent evolutionary origins compared to sexual impulses, would work similarly - and as effectively - for both men and women."