Researchers at the University of Western Australias suggested men have a surprising ability to spot trouble before she walked into his life.
Scientists claim men are able to tell if a woman is a cheater simply by examining a photograph of her.
Researchers at the University of Western Australia suggested men have a surprising ability to spot trouble before she walked into his life.
Dr Samantha Leivers asked men to look at photographs where one woman was a lady of fidelity and the other was a chronic cheat.
The sex doctor found that in between 55% and 59% of the tests, men were able to guess which woman was the heartbreaker.
"We don't expect them to be 100 per cent accurate when they are literally just looking at someone's face for a few seconds,The fact that they're showing any accuracy from this limited information is pretty cool.
"We show for the first time that men's judgments of faithfulness from images of women can contain a kernel of truth when they are able to directly compare images in a forced choice task," she continued.
Men tend to look for evidence of trustworthiness to make their snap judgement as well as attractiveness, with pretty, unreliable-looking people deemed more likely to play away.