What happens when you have a blackout during an exam? Why do Dutch people say “I have sawdust in my head” when they do something stupid? Can you unlearn sleeping in the dark? What happens in the brain when you take psychedelics? What goes wrong in the brain when I lose focus? How is it that some people see an object as blue, while others say that same object is green? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? When are we able to solve MS? Is there a link between rheumatoid arthritis and anxiety? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it?