Three decades ago, the brain lost its sovereignty as the seat of thinking, feeling, and the operation of intelligence. In fact, those processes began to escape the confines of the nervous system itself. All of this occurred when it was discovered that various “messenger molecules” associated with the brain are in fact circulating throughout the body via the bloodstream. Every cell is eavesdropping on the brain’s activity, sending and receiving messages identical to those that the brain processes.
Over the next three decades, the realization that what we dub “intelligence” is a holistic feature of the body, the main difference being that outside the brain, this intelligence is nonverbal. The immune system’s incredible ability to identify and combat invading bacteria and viruses, in fact, has earned it the nickname of the floating brain. Everywhere researchers looked, new avenues were opening in a virtual information superhighway that reaches everywhere, and now it is possible to redefine wellness in terms of a “whole system” approach that has no need to recognize the artificial boundaries between brain and body, neurons and other cells, or even the distinction between human DNA and the countless other microbial genes that reside inside us.