What happens in the brain when you feel ‘confused’? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? Do you learn faster when you’re younger? Why (not)? Is there a link between rheumatoid arthritis and anxiety? Can you unlearn sleeping in the dark? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? Do we only use 10% of our brain? How is it that some people see an object as blue, while others say that same object is green? What is the purpose of brain research?