Members area login




Please enter your email address


Please enter your membership ID

Follow Cephalalgia
Follow IHS

Home & news

Welcome to the website for the International Headache Society

The International Headache Society (IHS) is the world's leading membership organisation for those with a professional commitment to helping people affected by headache. As a charity, the purpose of IHS is to advance headache science, education, and management, and promote headache awareness worldwide.

This site promotes the Society and its activities, and is the home of the Society's international journal Cephalalgia. We welcome Society members and all who work or seek information in the field of headache.

Lars Edvinsson
President, International Headache Society

Only $140 for online membership




IHS Board of Trustees

My clinical and research work are conducted within the Headache and Concussion sections of the Neurology Department at the Mayo Clinic in Phoenix, Arizona. I am the principal investigator of the Mayo Clinic Neuroimaging of Headache Laboratory, a lab that investigates brain structure and function in those with migraine, post-traumatic headache, and other headache types. Imaging findings help to elucidate the pathophysiology of these conditions. Furthermore, we employ machine-learning techniques to develop models of brain imaging data that help to differentiate and “classify” headache types. I am also a principal investigator of a multicenter randomized clinical trial, called the “MOTS (medication overuse treatment strategy) Trial” that is comparing different strategies for treating patients who have chronic migraine with medication overuse. Furthermore, I am a lead investigator of the American Registry for Migraine Research (ARMR) and the soon-to-launch International Registry for Migraine Research (IRMR). These multicenter, prospective, longitudinal patient registries and biorepositories collect in-depth data and specimens from patients with migraine and other headaches with the aim of facilitating efficient collaborative research that will advance our understanding of factors that affect disease expression, treatment responses, and disease course.

In addition to my service on the Board of Trustees of the International Headache Society (IHS), I am on the Board of Directors for the American Headache Society, and am the Chairperson for the Post-Traumatic Headache Working Group of the International Classification of Headache Disorders. I am an Associate Editor for the journals Cephalalgia, Cephalalgia Reports, Headache, and Pain Medicine. While serving on the Board of Trustees I will help lead the IHS in its continuing efforts to advance headache science, educate clinicians, scientists, and patients, promote headache awareness, and collaborate with national headache societies throughout the world.

Todd Schwedt
Professor of Neurology, Mayo Clinic, Phoenix, Arizona, USA


You need to be a member of the IHS to access this area of the website, please sign in to continue.

To find out more about membership types and how to join the IHS click onto the 'join' banner on the home page.

Close this box to continue.

Access to the Members Directory is restricted to Standard IHS members

Members Login

Your membership is currently shown as unpaid.

To renew your membership online click HERE.

Otherwise, please contact Carol Taylor to discuss your renewal.

This document is only available to members – please login.