The mind serves you the version of reality you need: Not the true one.

What one sees, the way we interpret things, is not pure reality. It’s just a version of it that our minds have adjusted to make it easier for you to live with. Because the brain doesn’t want the truth. The brain wants peace, certainty, and something that makes sense. Even if it’s a half-truth or a lie. Research shows that our minds can trick themselves to protect us, to boost our self-esteem or to help us cope with unpleasant situations.

Why does our own thinking often confuse us? In what ways can this happen? And is this seemingly protective mechanism always beneficial? See an explanation of how we actually bend reality without noticing it.

How the brain manufactures its own truths

Our minds are masters at self-deception. Scientists call it self-deception. Sometimes the brain would rather create a pleasant lie than show us an ugly truth. A 2022 study showed that increased activity in a part of the brain called the anterior mPFC is to blame for self-deception. This is the area that decides our self-concept and self-esteem.

Research on 152 people at the time showed that people are more likely to form false beliefs about their abilities when they have easy answers or when it’s hard to determine how good they actually are at something. The brain simply fills in the blanks to make it look better.

Philosopher Alfred Mele explains that self-deception arises not because we are less intelligent, but because we as humans automatically tend to believe the nicer version. We want to feel good, better than others, stable. So the brain doesn’t work as a truth detector, but rather as a kind of PR manager: it shows you the part of reality that will lift your mood or reduce your stress.

Why is a modified reality more beneficial to us than the real one?

It may sound strange, but believing your own illusions can be advantageous for your brain. People who have deluded themselves in the past had lower cognitive load on tests later on than those who deluded others. In other words, when we lie to ourselves, the brain saves energy.

Research from 2024 showed that self-deception can be disrupted if one receives really hard, specific, and undeniable negative feedback. But until that feedback is strong enough, we hold on to our own version of reality very tightly. This mechanism does not make us weak. It is simply an evolutionary protection.

Cognitive distortions: little illusions that change everything

One of the most common distortions our minds are guilty of is the frequency illusion. When you first notice something (a new car, for example), you suddenly feel like you see it everywhere. But in reality, your attention has just changed. Psychologists explain this by a combination of selective attention and confirmation bias.

The brain creates the impression that what is in our head is also all around us. Reality thus adjusts to our expectations. Another powerful distortion is the overconfidence effect, or overconfidence. People think they are right even when their estimates or opinions are statistically wrong. This makes us feel more confident, but less open to actual reality.