Is there a link between rheumatoid arthritis and anxiety? Is dopamine good for you and serotonin bad? How does personality arise? And does it change over the course of your life? Why do Dutch people say “I have sawdust in my head” when they do something stupid? Can brain implants read and control our minds? How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same? How does music affect mental health? Why are you grumpy after a bad night of sleep? Does a 14T MRI scanner make more noise than a 3T MRI scanner? Why don’t we use stem cell therapy for MS?