Why do people still receive electroshock therapy? What is the impact of speaking multiple languages on the brain? How do brain cells communicate with each other? What causes Alzheimer’s disease? Is there a link between rheumatoid arthritis and anxiety? Are computers smarter than humans? Why is some information stored so quickly in the brain, while other information takes much longer? Is dopamine good for you and serotonin bad? Is it true that you can be ‘left-brained’ or ‘right-brained’? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia?