Study on biology of chronic fatigue illness stirs debate

By Kate Kelland LONDON (Reuters) - A team of scientists said on Friday they had found "robust evidence" that a condition called Chronic Fatigue Syndrome (CFS) is a biological as opposed to a psychological disorder, but some experts questioned the findings. The team from Columbia University in the United States identified in their research distinct immune changes in patients with CFS -- markers they said pointed to distinct disease stages and would lead to better diagnosis and treatment. Many sufferers say they think their illness started after a viral infection. Recent research showing psychological treatments such as cognitive behavior therapy can help CFS sufferers become more active have also caused argument, with some patients complaining such results suggest they are just lazy or suffering from a condition that is all in the mind.



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