More than 95% of people will experience a headache at least once in their lives. Discover the answers to common questions about this nearly universal human experience. Part of the Q&A Health Guides series, this book offers a broad introduction to headaches using an engaging question-and-answer format. The book's questions explore the different types of headaches, including tension-type headaches, migraines, and less common but more severe headache disorders such as cluster headaches. Readers will discover the causes and triggers of headaches, how headache disorders are diagnosed and managed, and the warning signs that a headache may be an indication of a serious underlying health issue such as a brain tumor. The book also examines the often unacknowledged toll that severe headache disorders can have on individuals, relationships, and even the economy. Augmenting the main text, a collection of 5 case studies illustrate key concepts and issues through relatable stories and insightful recommendations. The Common Misconceptions section at the beginning of the volume dispels 5 long-standing myths about headaches, directing readers to additional information in the text. The glossary defines terms that may be unfamiliar to readers, while the directory of resources curates a list of the most useful books, websites, and other materials. Finally, whether they're looking for more information about this subject or any other health-related topic, readers can turn to the Guide to Health Literacy section for practical tools and strategies for finding, evaluating, and using credible sources of health information both on and off the internet.