As a psychologist, I probably shouldn’t be surprised, but I still am. I remember drawing hugely complex diagrams of the nervous system for my masters degree, showing all the nerves going into and out of the brain, making contact with virtually every organ and system of the body. I know, intellectually speaking, that the nervous system, and thereby the brain, is hugely influential in everything the body does, but I still can’t help it. I just figure if you were inventing a machine that needs fuel, you’d have a fairly simple fuel gauge — a little meter that says “stomach full, well done”. Nope. I’ve written in other posts about…