How do brain cells communicate with each other? What goes wrong in the brain when I lose focus? Why do Dutch people say “I have sawdust in my head” when they do something stupid? What is already known about long covid and the brain? How is a neuron made?  How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same? Why don’t we use stem cell therapy for MS? How is it that some people see an object as blue, while others say that same object is green? What happens when you have a blackout during an exam? Can you unlearn sleeping in the dark?