TENSIONHEADACHE
Tension headache
A tension headache is the most common type of primary headache. The pain can radiate from the lower back of the head, the neck, eyes, or other muscle groups in the body. Tension-type headaches account for nearly 90% of all headaches. Approximately 3% of the population has chronic tension-type headaches.The above text is a snippet from Wikipedia: Tension headache
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