Why do brain tissues have different colours? How does personality arise? And does it change over the course of your life? How does stress affect your brain? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? How does your brain know that you want to move? Is dopamine good for you and serotonin bad? Is the brain more or less active during sleep? Are computers smarter than humans? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence?