Established worldwide as the one definitive, encyclopedic reference on headache, The Headaches is now in its thoroughly revised, updated Third Edition. The foremost international authorities examine the mechanisms of over 100 types of headache and provide evidence-based treatment recommendations, including extensive tables of controlled clinical trials. This edition presents the revised International Headache Society classification of headaches and explains how to use this new classification for accurate diagnosis. Many headache entities are discussed for the first time, such as chronic migraines; primary headache attributed to sexual activity; primary stabbing, cough, exertional, and thunderclap headaches; hypnic headaches; and new daily persistent headaches. A new section focuses on childhood headaches. Chapters that focus on headaches in elderly patients and patients with psychiatric or medical diseases are also included.