Why do people often experience 'déjà vu' and what causes it?

People often feel like they've been somewhere before even though they haven't, this is called déjà vu.

Imagine you're playing with your favorite toy car. You push it forward, and poof! It looks just like a time when you played with it earlier. That’s kind of what happens with déjà vu, your brain gets confused for a moment, making you feel like you've already experienced something.

Your brain has two parts that help you remember things: one that takes in new information and another that helps you recall old memories. Sometimes, these two parts don’t work together perfectly. It’s like when you’re trying to put on your shoes, but you mix up the left and right ones, your brain thinks it's seeing something familiar, even though it's not.

It's like watching a movie you’ve seen before, but only for a second. Your brain is saying, “Wait, I think I saw this part already!” But then the moment passes, and everything goes back to normal, just like when your toy car stops moving, and you realize it’s just your favorite toy again! People often feel like they've been somewhere before even though they haven't, this is called déjà vu.

Imagine you're playing with your favorite toy car. You push it forward, and poof! It looks just like a time when you played with it earlier. That’s kind of what happens with déjà vu, your brain gets confused for a moment, making you feel like you've already experienced something.