Even little fibs can have serious consequences — and some of them just might surprise you. Like Pinocchio, everyone sometimes tells a lie. Most people don't lie often, science finds. But research shows that even small lies can take a toll on your brain.
Lying can be cognitively depleting, it can increase the risk that people will be punished, it can threaten people's self-worth by preventing them from seeing themselves as “good” people, and it can generally erode trust in society.
Lying can trigger an increased heart rate, high blood pressure and elevated levels of stress hormones in the blood, psychologists have found. Over time, that can take a significant toll on mental and physical health.
Although several brain areas appear to play a role in deception, the most consistent finding across multiple fMRI studies is that activity in the prefrontal cortex increases when people lie.
When we engage in deceit, our respiratory and heart rates increase, we start to sweat, our mouth goes dry, and our voice can shake. Some of these physiological effects form the basis of the classic lie-detector (polygraph) test. People vary in their ability to tell a lie due, in part, to differences in the brain.
They alter our reality, reframing it through the agenda of the person who doesn't want the truth to come out. Being lied to makes you feel insecure – your version of the truth is discredited. It also makes you feel unimportant – the person lying to you didn't value you enough to tell the truth.
The main reason people lie is low self-esteem. They want to impress, please, and tell someone what they think they want to hear. For example, insecure teenagers often lie to gain social acceptance. Here, parents should emphasize to their children the consequences of lying.
Guilt is most likely when the liar shares values and respects the target of the lie. It is much harder to lie or cheat someone who has acted fairly. But if the wages are too low, the spouse cold and inconsiderate, the parent too strict – the liar may feel entitled to cheat, and feel no guilt about doing so.
The Effects of Dishonesty
Even when somebody has good intentions for not being honest, the act of deceit can lead to a decreased sense of trust. Not only can this cause relationship difficulties, but in some situations dishonesty may also lead to a tarnished reputation, career issues, and other social difficulties.
Why is lying toxic? By telling a loved one a lie, they will feel betrayed by you and it is this feeling of betrayal that can lead to a breakdown in communication, making them feel even more vulnerable than they already are! Love doesn't hurt but lies do; and the moment you start telling lies, it is no longer love.
Lying is not usually enough to create PTSD, but trauma is a real effect of lying. Let's look at the difference between PTSD and trauma, and why lying is more likely to cause trauma than PTSD. Lying in your relationship does not usually cause PTSD because PTSD is triggered by more severe events than trauma.
A habitual liar may feel extreme stress from keeping track of their falsehoods. They may struggle to live up to their own claims. If their lies are exposed, their relationships will likely grow strained. In some cases, they may face legal consequences.
You can't always change the behavior of a liar, but you can change how you feel and react to them. Once you learn to change your emotions about a situation you begin to see a lot more options. If you are honest with the situation you will realize that your happiness is more important than their behavior anyways.
However, of the most common motives for telling lies, avoiding punishment is the primary motivator for both children and adults. Other typical reasons include protecting ourselves or others from harm, maintaining privacy, and avoiding embarrassment, to name a few.
Most people say they lie to avoid causing negative feelings, sidestep conflict, and to escape hurting or insulting a partner.