How does music affect mental health? Can you unlearn sleeping in the dark? Why is it easier to learn a language as a kid? Can I learn from a text by listening to it while I sleep?  Why is some information stored so quickly in the brain, while other information takes much longer? Why do Dutch people say “I have sawdust in my head” when they do something stupid? How does our breathing influence how we think and feel? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? What is the ‘brain freeze’ sensation when eating or drinking something cold? Are emotions experienced in the heart or the brain?