Leading headache science, education and management globally

The world’s leading membership organisation for those with a professional commitment to helping people affected by headache

Become a member/Renew membership About IHS

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

As a charity, the purpose of IHS is to advance headache science, education, and management, and promote headache awareness worldwide.

The official journal of the International Headache Society

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International Headache Congress 2021

Latest News View all

Register today for IHC 2021

IHC 2021 is in less than 2 months. Register now to take advantage of the advance registration rate, ending on 4 August.

23rd Jul 2021

Michael Moskowitz to deliver his Brain Prize lecture on 29 July

Join Professor Moskowitz on 29 July when he will deliver his inspirational lecture 'Migraine Headache - the revolution and its evolution'

20th Jul 2021

Allied Specialities Scholarships 2021

Allied HCPs - deadline for applications 11 June - don't miss your chance to apply

20th Jul 2021

IHS Juniors Group elections 2021 - call for nominations

If you are interested in joining the IHS Juniors Group to help shape the future of IHS, apply today!

7th Jul 2021

The latest from the IHS

International Headache Society
@ihs_official Jul 28
Take a look at all Teaching Courses which will be offered on the first congress day: headache-congress.org/programme/teac…
#headache #ihc2021 #ihs_official #headache #migraine #neurology
International Headache Society
@ihs_official Jul 27
7.1.2 Headache attributed to intracranial hypertension secondary to toxic substances. Hypervitaminosis A is a potential cause. One of the first descriptions of vitamin A toxicity, published in 1943 by Rodahl and Moore, linked the toxicity to the ingestion of polar bear liver.
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