Causes In the most common type of fibromyalgia, the cause is unknown. Physical injuries, emotional trauma, or viral infections may trigger the disorder, but no one trigger has been proven to cause primary fibromyalgia. Many experts believe that fibromyalgia is not a disease, but is rather a chronic pain condition brought on by several abnormal body responses to stress. Areas in the brain that are responsible for the sensation of pain react differently in fibromyalgia patients than the same areas in healthy people. People with fibromyalgia have decreased activity in opioid receptors in parts of the brain that affect mood and the emotional aspect of pain. This reduced response might explain why fibromyalgia patients are likely to have depression, and are less responsive to opioid painkillers.
Posted on: Mon, 26 Aug 2013 01:37:03 +0000
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