Chronic fatigue syndrome (CFS) is a complex condition characterized by profound fatigue that is not improved by bed rest and may be made worse by physical or mental activity. Having chronic fatigue syndrome means more than just getting tired; people with the condition have extreme and overwhelming fatigue. It is estimated that as many as half a million Americans have chronic fatigue syndrome. But the illness affects people all over the world, not just in America.

 

To be diagnosed with CFS, a person must have chronic fatigue for more than six months and at least four other symptoms of chronic fatigue syndrome (such as sore throat, tender lymph nodes, muscle pain, and insomnia). There is no cure for chronic fatigue syndrome; treatment options for CFS often include lifestyle changes, medications to relieve symptoms, and alternative therapies.