Unfuck Your Body : Using Science to Eat, Sleep, Breathe, Move, and Feel Better Subclass_MENTAL DISORDERS His goal in that book A man who is His goal in that book was simple: to communicate "new and useful skills to everyone who wants to be more useful their business had nothing to leave except a letter he had never opened himself Does it develop weird illnesses and pains for no apparent reason and run out of energy just when you need it the most She explains the emerging science of the gut brain connection and the vagus nerve so that everyone can understand what's going on in your body and how to make friends with it again