Researchers have apparently discovered a way to tell if your partner has a tendency to cheat.

A new study published in Archives of Sexual Behavior, has discovered that men with a high facial width-to-height ratio are more likely to consider straying from their partner.

“The researchers calculated the FWHR by dividing the bi-zygomatic width of the face by the height of the upper face (i.e., the distance between the upper lip and brow).”

After handing out questionnaires to around 500 students in Canada, researchers found that men with a wider face were far more likely to consider cheating, whether they identified as monogamous or not.

Researchers suggested that a wider face correlates to more fetal hormonal exposure, and those with more testosterone are more likely to have a higher desire to have a high sex drive.

We’re bringing a ruler to our next Tinder date.

It comes just weeks after scientists claimed to be able to work out if someone is gay based on their face.

Researchers Michal Kosinski and Yilun Wang from Stanford University, using a total of 35,326 pictures taken from dating websites, loaded the images into their high-tech VGG-Face software.

It then used a model called “logistic regression” to guess people’s sexual orientation – and it turns out it actually worked pretty well.

Shockingly, the software was 91% correct at guessing a man’s sexuality based on just five photos.