Men who have betrayed partners have the word "betrayal" written in the forefront, according to a new study published at The Royal Society Open Science. Experts say that the participants in the study were able to find out who were the people who had betrayed, simply looking at the face.

Heterosexual participants were asked to examine a range of men and women photographs and evaluate them from 1 to 10 regarding the likelihood of being betrayers.

The results showed that men with "masculine" faces were generally perceived more as traitors in relation to others. In fact, from the preliminary data, it turned out that indeed most of those who had betrayed were characterized by more masculine traits.

These features include: thick eyebrows and big ball,

the pronounced jaw line

and the edge of money.

The research team also stated that more detailed research should be conducted using more cases. Kristen Knoëles, a psychologist at the Queen's Margaret University in Edinburgh, stressed that these studies are important, but other factors also influence the definition of an individual as a traitor or non-traditor.

"We need to be aware that these behaviors are complex," she told The Guardian. "People are influenced by social, cultural, personality traits, genetics and life experiences."