How does speaking multiple languages impact the brain? How does stress affect your brain? Why do brain tissues have different colours? What effect does cyanide have on the brain? Can a brain scan show whether people are already producing their language response while their conversation partner is still speaking? Can you unlearn sleeping in the dark? What is the ‘brain freeze’ sensation when eating or drinking something cold? Can you distinguish between people who are visual or auditory learners? Do you learn faster when you’re younger? Why (not)? Why is sleep so essential?