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Overview


Chronic fatigue syndrome (CFS), also called chronic fatigue immune dysfunction syndrome (CFIDS), is a complex disorder that causes severe fatigue that worsens with activity and does not improve with rest. In most cases, patients who have CFS cannot maintain the same level of activity as before they developed the condition.


In addition to fatigue, chronic fatigue syndrome may cause other general symptoms such as muscle weakness and pain, insomnia, and impaired mental abiliti...Read the full article