Do you ever find yourself wondering why you do the things you do every day, or reach the decisions you make? Most of the time, small everyday tasks and decisions aren't given much thought by our conscious mind, but our unconscious mind may always be thinking about them. This week on "Take Care," Shankar Vedantam, a science correspondent for NPR who focuses on human behavior and social sciences, explains what he calls the hidden brain and his work on the topic. Vedantam is the host of the NPR