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Similar Brain Damage in Chronic Fatigue Syndrome and Sleep Apnea

Posted Mar 05 2011 8:15am

There are a lot of controversial theories about the origins of chronic fatigue syndrome (CFS), and even more recommendations on how it can be treated. One particular explanation is that people with CFS have some sort of brain dysfunction, which disrupts how it regulates the body’s nervous, metabolic, and hormonal systems. A recent study confirmed that white matter and grey matter volume was diminished in various parts of the brain and brainstem.

These findings are very similar to numerous studies showing that untreated obstructive sleep apnea can lead to brain volume loss or lower tissue density in various parts of the brain. This brings up the classic chicken or the egg question: Did brain damage come first and CFS afterwards, or does CFS cause brain damage? Knowing how common sleep-breathing problems are at any age, and knowing how even mild levels of breathing difficulty during sleep can affect brain functioning, perhaps this could be a more logical reason for most (but not all) cases of CFS.

Many patients with CFS will have documented obstructive sleep apnea, but not all. However, the upper airway anatomy in most CFS patients are more like people who have upper airway resistance syndrome. Their upper airways are so narrow that their nervous system become overly sensitive to any degree of airway obstruction. As I’ve stated before, UARS patients wake up to a light stage of sleep, even with very subtle degrees of breathing obstruction. This causes a chronic low-grade physiologic state of stress, which by itself is known to be detrimental to brain health.

So it’s not surprising that most people with CFS have very small mouths and narrow jaws. Many have had excessive dental extractions for various reasons, or have various degree of jaw underdevelopment. The vast majority definitely can’t sleep on their backs.

This also explains why a simple cold or viral infection (Mono, Lyme, etc.), sudden weight gain, or physical injury that forces you to sleep on your back, can trigger the vicious cycle that leads into the classic symptoms of CFS. All these events suddenly narrow the already narrowed upper airway.

If you have CFS, what was your precipitating event?



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