If you complain of brain fog to a medical professional, you’re likely to be told that it isn’t a recognised condition. But if you mention brain fog to your friends, they’ll know exactly what you mean: fuzzy thinking, trouble concentrating, a sense of grasping for the right word, feeling like your brain is somehow slowed down. In truth, brain fog is not a diagnosis in itself, but a sign that things aren’t right in your body. In this book, neuroscientist Dr Sabina Brennan guides us through the science to show how our brains work, and why we might experience confusion and anxiety. She offers tools to help you identify your own cognitive profile, determining the causes of your specific symptoms, and explains the simple strategies that can help you feel like yourself again.