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Chronic fatigue syndrome, or CFS, is a debilitating and complex disorder characterized by profound fatigue that is not improved by bed rest and that may be worsened by physical or mental activity. Symptoms affect several body systems and may include weakness, muscle pain, impaired memory and/or mental concentration, and insomnia, which can result in reduced participation in daily activities.

Chronic Fatigue Syndrome Topics

General Information

An overview of Chronic fatigue syndrome (CFS)...

Causes

Risk factors, triggering factors, possible causes...

Diagnosis

Clinical evaluation, diagnostic criteria...

CFS Case Definition

The 1994 International Case Definition of CFS - How was it developed?

Symptoms

Primary and secondary symptoms, clinical course...

Management

Managing and coping with CFS, therapies...

Pediatric CFS

CFS is often thought of as a problem in adults, but it also affects children and adolescents. Between 0.2% and 2.3% of children or adolescents suffer from CFS. CFS is more prevalent in adolescents than in younger children. In children, particularly in adolescents, CFS is more likely to develop after an acute flu-like or mononucleosis-like illness, but gradual onset of illness may occur.

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