How does stress affect your brain? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? How do brain cells communicate with each other? Why is sleep so essential? Why do people still receive electroshock therapy? What effect does cyanide have on the brain? Is the brain more or less active during sleep? How does your brain know that you want to move? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? Do you learn faster when you’re younger? Why (not)?