How does our brain know what we are thinking?

Inside the brain there are billions of tiny cells called neurons. These cells send tiny electrical signals to each other all the time. When you think of something, neurons in your brain join together like a small 'team' and make that thought happen.

At the front of the brain, just behind your forehead, there is a special area. This area watches what the rest of the brain is doing. So one part of the brain looks at the rest of the brain. Scientists call this 'self-awareness'.

Actually, our brain does not know everything exactly, because most thoughts happen very fast and automatically. But when we notice a thought, it feels like looking through a window into our own brain. Scientists are still studying exactly how this happens.