This might be an obvious statement but the more you lie the better you get at it. So, with the exception of me, when someone is good at lying you might want to be worried!

According to a recent article in The Telegraph, when you tell a lie, your brain balks. Tell another one, and your brain handles it better. The more lies you tell, the more sensitized your brain becomes to your self-serving and dishonest behavior, leaving your conscience speechless.

That's the word from researchers at University College London, who have determined that once we engage in dishonest behavior, such behavior only escalates. The study, led by Neil Garrett, asked 80 men and women ages 18 to 65 to tell a second person the amount of money in a jar of pennies. In some of the trials, certain conditions were presented so the participant benefited from being dishonest.

Over the course of the trials as incentives were added for dishonesty, people's dishonesty escalated. The brain scans showed that the amygdala, the part of the brain that is wired for emotions, had a marked reduction in activity in response to the lies a person told as the trials progressed. In fact, the British researchers found that the amount of the reduction in the amygdala's activity for each trial could actually predict the amount the participant's dishonesty would increase in the next trial.

Interestingly, the amygdala appears to signal an aversion to acts or words that we consider to be wrong or immoral and that helps us to avoid doing the wrong thing. Call it a conscience. But the more frequently we lie or do wrong, the more that response from the amygdala fades. Call that the conscience being silenced.

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