Why don’t we use stem cell therapy for MS? Why do Dutch people say “I have sawdust in my head” when they do something stupid? Can brain implants read and control our minds? Why do some people remember things better than other people? Is there a link between rheumatoid arthritis and anxiety? How is a neuron made?  What causes Alzheimer’s disease? How does music affect mental health? How does your brain know that you want to move? Do we only use 10% of our brain?