Why do some people remember their dreams and others do not? What is already known about long covid and the brain? Why are you grumpy after a bad night of sleep? Why is some information stored so quickly in the brain, while other information takes much longer? Are emotions experienced in the heart or the brain? Do we produce new neurons in our adult brains? Or does this stop at a certain age? What happens in the brain with ALS? Can you distinguish between people who are visual or auditory learners? Why is it easier to learn a language as a kid? What effect does cyanide have on the brain?