Is the brain more or less active during sleep? What happens when you have a blackout during an exam? What happens in the brain when you feel ‘confused’? Why is sleep so essential? What goes wrong in the brain when I lose focus? Can I learn from a text by listening to it while I sleep?  Why do people still receive electroshock therapy? How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same? What is already known about long covid and the brain? Why don’t we use stem cell therapy for MS?