What causes Alzheimer’s disease? Is it true that you can be ‘left-brained’ or ‘right-brained’? What is fainting? How do brain cells communicate with each other? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? How is a neuron made?  How are memories made in the brain? What happens in the brain with ALS? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? Why are you grumpy after a bad night of sleep?