Why do some people remember things better than other people? Can you unlearn sleeping in the dark? How is it that some people see an object as blue, while others say that same object is green? Why do Dutch people say “I have sawdust in my head” when they do something stupid? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? Why are you grumpy after a bad night of sleep? Why is some information stored so quickly in the brain, while other information takes much longer? How do brain cells communicate with each other? What effect does cyanide have on the brain? Is dopamine good for you and serotonin bad?