How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? How does music affect mental health? Why is sleep so essential? Why do children outperform adults in the game of ‘concentration’? Do you learn faster when you’re younger? Why (not)? Do we really have a reptile brain, a mammal brain, and a human brain inside our heads? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? Does neuroscience provide better explanations for behaviour than psychology? What causes Alzheimer’s disease? How is a neuron made?