Noted American astrophysicist and cosmologist Neil deGrasse Tyson said, “Everything we do, every thought we’ve ever had, is produced by the human brain. But exactly how it operates remains one of the biggest unsolved mysteries, and it seems the more we probe its secrets, the more surprises we find.” Theoretical physicist and futurist Dr. Michio Kaku (I call him the Mr. Wizard of theoretical physics for his efforts to popularize the field with the common man) also called the human brain “the most complicated object in the known universe.”
What we do know is that the human brain is the command and control center of the body’s nervous system, constantly sending and receiving information to and from the rest of the body. The human brain is the largest of all vertebrates, relative to body size, and weighs just over 3 lbs. and contains about 86 billion nerve cells, or neurons, billions of nerve fibers, and trillions of connections, or synapses.