What is already known about long covid and the brain? Does neuroscience provide better explanations for behaviour than psychology? What happens in the brain when you take psychedelics? How is a neuron made?  Is it true that you can be ‘left-brained’ or ‘right-brained’? Why is sleep so essential? Is the brain more or less active during sleep? How does your brain know that you want to move? Why do brain tissues have different colours? How does stress affect your brain?