Surprised? Yes, you have got two brains, one in your skull and another in your tummy, That’s Enteric Nervous System (ENS) by our scientists. But we call it second brain because it contains about more than 100 million neurons. Ah! More than the spinal cord and brain. You might be even more surprised to know that it can work independently of your brain and spinal cord. It performs its duties well like controlling digestion, secreting enzymes, blood flow and many more.