What goes wrong in the brain when I lose focus? How does your brain know that you want to move? Can brain implants read and control our minds? Can you unlearn sleeping in the dark? How are memories made in the brain? Are computers smarter than humans? Are emotions experienced in the heart or the brain? How does personality arise? And does it change over the course of your life? Why is it easier to learn a language as a kid? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia?