Special Episode:  Randall explores his insight into the understanding of the brains need for certainty.  He shares helpful tips to understanding when the brain detects something is wrong, and how our ability to focus on other issues diminishes. Our brain doesn't like uncertainty - it's like a type of pain, something to be avoided. Certainty, on the other hand, feels rewarding, and we tend to steer toward it, even when it might be better for us to remain uncertain.