The old saying "once a cheater, always a cheater" appears to be truer then ever now that this study has come out.
According to a new study about dishonesty, each time a person lies they feel less guilty about doing it.
It's all down to the part of the brain called the "amygdala" which provides a negative response every time an ugly little lie comes out of your mouth.
The study went on to say, "we speculate that the blunted response to repeated acts of dishonesty may reflect a reduction in the emotional response to these decisions or to their affective assessment and saliency."
The co-author of the paper revealed that the findings from the study would need to be tested on actual relationships in order to confirm how sucessful it was on infidelity.
He told Elite Daily, "The idea would be the first time we commit adultery we feel bad about it. But the next time we feel less bad and so on, with the result that we can commit adultery to a greater extent."