Events that start tension headaches may include emotional pressure and the deeper than normal sadness called depression. Other tension headaches can start from something as simple as tiredness. Common changes in atmospheric conditions also can be responsible.
The Mayo Clinic says you may feel a tension headache as tightness in the skin around your eyes. Or, you may feel pressure around your head. Episodic tension headaches strike from time to time. Chronic tension headaches happen more often. A tension headache can last from a half hour to a whole week.
BOB DOUGHTY: The Mayo Clinic says the pain may come very early in the day. Other signs can include pain in the neck or the lower part of the head. Scientists are not sure what causes tension headaches. For years, researchers blamed muscle tension from tightening in the face, neck and the skin on top of the head. They believed emotional tension caused these movements.
But that belief has been disputed. A test called an electromyogram shows that muscle tension does not increase in people with a tension headache. The test records electrical currents caused by muscle activity. Such research caused the International Headache Society to re-name the tension headache. The group now calls it a tension-type headache.
SHIRLEY GRIFFITH: Some scientists now believe that tension headaches may result from changes among brain chemicals such as serotonin. The changes may start sending pain messages to the brain. These changes may interfere with brain activity that suppresses pain.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25