Cheating signs include numerous strange behaviours, which have been revealed by relationship experts over the years.
Some are obvious, like someone fiercely guarding their mobile and snatching it away if their spouse goes near it.
Others are more subtle, including sleeping more soundly and doing their own washing.
However, some cheating signs are not behaviours at all, but physical attributes.
Women with one particular physical characteristic are more likely to cheat, and it’s not what you might think.
A study by Jim McNulty published in the Journal of Personality and Social Psychology found that less attractive women are more likely to cheat.
According to the researchers, the better looking a woman is the more likely she is to be faithful.
There is very little to explain why this might be the case, but there was an inverse correlation between attractiveness and the likelihood to cheat in women.
The same was not observed in men. Men, however, were more likely to cheat if they think their partner is less attractive.
Those men who do not rate their partner high on the physical attractiveness scale in comparison to the general population were far more likely to cheat.
There are a number of other signs that can indicate your spouse is more likely to cheat, and some are shocking.
It is claimed that Christians are more likely to be caught cheating.
Followers of Christianity are more likely to be unfaithful in their marriages than atheists, IllicitEncounters.com has claimed.
The site for online cheating asked its members to state their religious belief.
They found that 35 per cent of their members consider themselves Christians.
What is more, a whopping 90 per cent of women cheat who have two parents that have had extra marital affairs.