From Our 2010 Archives
Health Tip: What May Cause Cluster Headaches
Latest Chronic Pain News
(HealthDay News) -- Cluster headaches are bouts of severe, recurring pain on one side of the head. They may strike in clusters, occurring daily or several times a day for weeks at a time. The exact cause of cluster headaches isn't understood.
The University of Virginia Health System says risk factors for cluster headaches are thought to include:
-- Diana Kohnle
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