How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? Why do people still receive electroshock therapy? How does music affect mental health? What is already known about long covid and the brain? Is dopamine good for you and serotonin bad? Why do brain tissues have different colours? Are there people or animals with more or fewer than two brain hemispheres? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? Do the male and female brain differ? How does speaking multiple languages impact the brain?