Our brain and its wonders!!!

If the physical brain grows — so we would have larger heads with evolving consciousness?

If your consciousness grows, your brain grows, too; that is, the prefrontal cortex. We have three brains, the reptilian brain, 300 million years old; the limbic or emotional brain, 100 million years old and the cortical brain which is only four million years old. This part of the brain grew expansively with use of language as we could communicate our minds with each other. But about the size of the head — perhaps it would be larger tens of millions of years hence, for the brain grows by less than a fraction of a millimetre.

Om Namah Shivay.