The cause of tension/cervicogenic headaches arises from the muscles and joints of the neck. Poor posture and overuse of the neck are the most common causes of these headaches. Here, the muscles get fatigued, tighten, stress the spinal joints, and the ache begins.
Cluster and migraine headaches are the result of either nervous system dysfunction or vascular dysfunction. The jury is still out on this. But we must ask ourselves... what causes the nervous or vascular dysfunction? Clinical experience shows that people with these types of headaches tend to have problems in their upper neck spinal joints. Could it be possible that the nerves of the upper neck or brainstem go to the blood vessels in the head and when the upper neck spinal joints get locked up, or subluxated, inflammation chokes these nerves creating a distorted signal, thus causing dysfunction of these blood vessels, creating these headaches? Our clinical experience says, "yes."