How does your brain know that you want to move? Are there people or animals with more or fewer than two brain hemispheres? Do some people have stronger mental imagery than others? And does this affect how they learn? What goes wrong in the brain when I lose focus? Why do some people remember things better than other people? Is it true that you can be ‘left-brained’ or ‘right-brained’? What happens in the brain with ALS? How is a neuron made?  How does stress affect your brain? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons?