The human brain, a remarkable organ with over 200 billion cells and hundreds of trillions of connections, developed through evolution for survival and procreation, not accuracy or perception of objective reality. It is designed to accomplish extraordinary tasks, but thinking is not one of them. As amazing as its capacities may be, it is equally amazing what our conscious minds cannot do, what we miss, what we sense that is not there, and why our brains developed that way. Why are there optical illusions? Why do we believe obvious lies? How are conservatives' and liberals' brains different? Advertisers and politicians use this knowledge. We will discuss how to overcome some of the limitations of our brains and how to keep our brains active and healthy. Designed for the layperson, this course does not require a science background. It will include presentations, discussions, and videos. Footnotes will be provided for those wishing to look deeper into the science. | Lecture + Q&A.