What goes wrong in the brain when I lose focus? What is the ‘brain freeze’ sensation when eating or drinking something cold? Does a 14T MRI scanner make more noise than a 3T MRI scanner? Are there people or animals with more or fewer than two brain hemispheres? Why do brain tissues have different colours? Why is sleep so essential? What effect does cyanide have on the brain? What happens when you have a blackout during an exam? How does music affect mental health? What is fainting?