How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? Are emotions experienced in the heart or the brain? What is fainting? What causes Alzheimer’s disease? How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same? What happens in the brain when you feel ‘confused’? Do we only use 10% of our brain? Can you unlearn sleeping in the dark? What happens in the brain when you take psychedelics? How does speaking multiple languages impact the brain?