What is already known about long covid and the brain? Why is sleep so essential? Are there people or animals with more or fewer than two brain hemispheres? Can I train plasticity? Is it true that you can be ‘left-brained’ or ‘right-brained’? Why do some people remember things better than other people? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? How does personality arise? And does it change over the course of your life? Can I learn from a text by listening to it while I sleep?  Can you distinguish between people who are visual or auditory learners?