What happens in the brain when you feel ‘confused’? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? How does your brain know that you want to move? Do you learn faster when you’re younger? Why (not)? Why do brain tissues have different colours? What is already known about long covid and the brain? Why are you grumpy after a bad night of sleep? Are emotions experienced in the heart or the brain? What is the impact of speaking multiple languages on the brain? What happens in the brain with ALS?