How does personality arise? And does it change over the course of your life? What happens in the brain when you take psychedelics? Why do brain tissues have different colours? Are computers smarter than humans? Why do some people remember things better than other people? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? Is there a link between rheumatoid arthritis and anxiety? Why is it easier to learn a language as a kid? What is already known about long covid and the brain? How does our breathing influence how we think and feel?