

Chronic fatigue syndrome is a condition of prolonged and severe tiredness or weariness (fatigue) that is not relieved by rest and is not directly caused by other conditions. To be diagnosed with this condition, your tiredness must be severe enough to decrease your ability to participate in ordinary activities by 50%.
See also: Fatigue
CFS; Fatigue - chronic; Immune dysfunction syndrome
, Sep 13, 2009 09:16PM - 14 Comments