If any treatment has promise, vagus nerve stimulation (VNS) does. Through its stimulation of the rest/digest system (the parasympathetic nervous system (PNS)), VNS has the potential to tamp down the fight/flight system that seems to be raging in chronic fatigue...
The fight/flight part of the autonomic nervous system has been shown to be ramped up. Two recent studies, suggest, though, that entire ANS may be messed up.
People with fibromyalgia display an unusual activation in one of the most primordial parts of the brain - the brainstem. The activation involves giant neurons and likely increases pain sensitivity and impairs autonomic nervous system functioning.
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