Why do some people remember their dreams and others do not? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? How does music affect mental health? Are computers smarter than humans? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? Do the male and female brain differ? Why don’t we use stem cell therapy for MS? Can you unlearn sleeping in the dark? How does stress affect your brain? Is the brain more or less active during sleep?