Unlike migraines , they affect men more often than women. They occur anytime, most commonly from adolescence to middle age. There does not seem to be a pattern among families in the development of cluster headaches.
Cluster headaches occur as a severe, sudden headache.
No specific cause has been found for the disorder, but it appears to be related to a release of histamine, serotonin , or similar substances from body tissues. A person may experience alternating chronic and episodic phases. Some people who experience cluster headaches are heavy smokers. Alcohol use may trigger attacks. In some people, glare, stress , or certain foods may trigger an attack.