Why do people still receive electroshock therapy? Is the brain more or less active during sleep? What is the ‘brain freeze’ sensation when eating or drinking something cold? What happens when you have a blackout during an exam? Can you distinguish between people who are visual or auditory learners? What is the purpose of brain research? How does personality arise? And does it change over the course of your life? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? Why is sleep so essential? Why do Dutch people say “I have sawdust in my head” when they do something stupid?