Why do some people remember their dreams and others do not? 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? Can you unlearn sleeping in the dark? What goes wrong in the brain when I lose focus? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? How do brain cells communicate with each other? Why do people still receive electroshock therapy? How does your brain know that you want to move? What happens when you have a blackout during an exam?