Emma Byrne examines the latest research to show how swearing can be good for you. She explores every angle of swearing--why we do it, how we do it, and what it tells us about ourselves. Not only has some form of swearing existed since the earliest humans began to communicate, but it has been shown to reduce physical pain, to lower anxiety, to prevent physical violence, to help trauma victims recover language, and to promote human cooperation. Taking readers on a whirlwind tour through scientific experiments, historical case studies, and cutting-edge research on language in both humans and other primates, Byrne defends cursing and demonstrates how much it can reveal about different cultures, their taboos and their values.