What happens in the brain when you feel ‘confused’? How are memories made in the brain? How is it that some people see an object as blue, while others say that same object is green? Can you unlearn sleeping in the dark? Are there people or animals with more or fewer than two brain hemispheres? Why are you grumpy after a bad night of sleep? Do the male and female brain differ? Why do brain tissues have different colours? Is there a link between rheumatoid arthritis and anxiety? Why is it easier to learn a language as a kid?