Cluster headaches may be caused by blood vessel dilation in the eye area. Inflammation of nearby nerves may give rise to the distinctive stabbing, throbbing pain usually felt in one eye. The trigeminal nerves branch off the brainstem behind the eyes and send impulses throughout the cranium and face.

The hypothalamus is a highly complex structure in the brain that regulates many important brain chemicals. Malfunction of this area of the brain may give rise to cluster headaches.

 

http://www.headaches.org/

 

Children and teens generally experience tension-type or migraine headaches. Among school age children ages 5-17 in the U.S., 20% (10.3 million), are dealing with chronic headaches. Approximately 15% of these kids experience tension-type headaches and 5% are coping with migraines.

 

 

 

 

The most common cause of tension-type headaches is muscle contraction in the head, neck or shoulders.

 

Tension headache 

http://headaches.about.com/od/essentialinfosheets/a/trauma_brain.htm 

 

 

   Headaches

http://www.childrenshospital.org/az/Site986/mainpageS986P0.html

 

 

  

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