A psychologist confronts our pervasive misunderstanding of anxiety and presents a powerful new framework for reimagining and reclaiming the confounding emotion as the advantage it evolved to be. We taught people that anxiety is dangerous and damaging, and that the solution to its pain is to eradicate it like we do any disease-prevent it, avoid it, and stamp it out at all costs. Yet cutting-edge therapies, hundreds of self-help books, and a panoply...