This book provides up-to-date information on all aspects of the comorbidities that are associated with the headache disorders commonly seen in the primary care and hospital settings, including migraine, tension-type headache, and cluster headache. The coverage is wide ranging and encompasses all of the well-established comorbidities: cardio- and cerebrovascular disease, psychiatric conditions, epilepsy, sleep disorders, and various pain disorders, such as visceral pain, fibromyalgia, orofacial pain, and neuropathic pain. Individual chapters are also devoted to obesity and other metabolic...