 But it just so happens that your nervous system, your lifeline, the very system that controls all of the function in every square inch of your body, I mean, for your heart to beat, lungs to breathe, stomach to digest food, for a cut to heal, for your immune system to fight the flu, your brain has to communicate through the nervous system to every cell, tissue, and organ in your body. That's just anatomy. That's not chiropractic. That's just a fact.