Why is some information stored so quickly in the brain, while other information takes much longer? Can I learn from a text by listening to it while I sleep?  Is dopamine good for you and serotonin bad? How does your brain know that you want to move? How does music affect mental health? What goes wrong in the brain when I lose focus? Is the brain more or less active during sleep? Why do brain tissues have different colours? What effect does cyanide have on the brain? Why do some people remember their dreams and others do not?