the number of neurons firing at the conscious level estimated 40. at the subconscious neuron firing 40 million. >> larry: is the heart in conflict with the brain? like i know this girl is wrong for me. i know that. >> that's a different thing. >> i think this is actually really important because it speaks to what some of the panelists have been saying about the frontal cortex. even in a healthy brain, we have neuron tracks and fibers that connect neurones in other areas of the brain. there are a lot of neuron tracks connecting the system to the pre-frontal cortex. there are almost none connecting it back. that means the deeper emotional self has total control over our executive function.