Albeit not being a fan of The Huffington Post, I find this particular piece noteworthy.
Our brains are the product of the environment in which we are nurtured through the first two decades of life. […] Our experience during childhood and adolescence determines the wiring of our brain so powerfully that even processing of sensory information is determined by our childhood environment.
Dr. Douglas Fields is right, and that is precisely why it can be so hard to communicate with an adult. In the absence of proper education, experience, especially negative, is limiting and coarsening the mind.