What is fainting? Is there a link between rheumatoid arthritis and anxiety? Does a 14T MRI scanner make more noise than a 3T MRI scanner? Is the brain more or less active during sleep? Why are you grumpy after a bad night of sleep? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? Is it true that you can be ‘left-brained’ or ‘right-brained’? How does stress affect your brain? How does our breathing influence how we think and feel? What is already known about long covid and the brain?