Why is it easier to learn a language as a kid? Can you unlearn sleeping in the dark? What is the impact of speaking multiple languages on the brain? What is already known about long covid and the brain? Why do some people remember things better than other people? How does personality arise? And does it change over the course of your life? Why do brain tissues have different colours? Why do children outperform adults in the game of ‘concentration’? What goes wrong in the brain when I lose focus? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it?