Your brain is part of the central nervous system (CNS), which also includes the spinal cord. This soft, spongy mass of tissue weighs around three pounds, is the most complex part of the human body and is the center of thinking and life for humans.
There are several layers of protection around your brain including cerebrospinal fluid, three thin layers of tissue that wrap around it and the bones of your skull.
Over the last few decades, scientists have begun to understand much more about the brain expanding greatly the neurological and behavioral sciences fields and advancing research techniques around healthy functions as well as what goes wrong when the brain is diseased or dysfunctional.
