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A.D.A.M. Medical Encyclopedia [Internet]. Atlanta (GA): A.D.A.M.; 2013.

A.D.A.M. Medical Encyclopedia.

Central nervous system

Last reviewed: May 22, 2011.

The central nervous system is composed of the brain and spinal cord. Your brain and spinal cord serve as the main "processing center" for the entire nervous system, and control all the workings of your body.

Review Date: 5/22/2011.

Reviewed by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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    Alcohol withdrawal syndrome (AWS) is a set of symptoms experienced when one reduces or stops alcohol consumption after prolonged periods of alcohol intake. Some studies show that AWS coincides with low levels of magnesium in the blood. Since magnesium may play a role in dampening the excitability of the central nervous system, some researchers believe that low levels of magnesium may make the central nervous system 'hyper‐excitable' and may cause AWS symptoms, which include sleeplessness, tremors, anxiety, headache, excessive sweating and reduced appetite. Many AWS treatment protocols therefore recommend magnesium supplementation.
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