That might seem a long and winding explanation for what a thought is and what happens in your body and brain as a result of them. But it's justifiable because there is so much, we don't know about the brain. This supercomputer contained within our skulls is an incredible organ and if scientists were to map out the brain's processes completely, they would effectively be building a supercomputer. People might argue that thoughts are separate from the body and say it’s nonsense to think they can physically influence the body. There is a lot we don't understand, but we can see the direct influence our thoughts have on our bodies and brains.