What happens in the brain when you take psychedelics? Do we only use 10% of our brain? Can you unlearn sleeping in the dark? What happens in the brain with ALS? Is there a link between rheumatoid arthritis and anxiety? Is it true that you can be ‘left-brained’ or ‘right-brained’? What happens in the brain when you feel ‘confused’? Why do some people remember things better than other people? What effect does cyanide have on the brain? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it?