Scientists claim to have 'robust' evidence that chronic fatigue syndrome has biological cause

Scientists say they have struck upon the first “robust evidence” that the debilitating condition known as chronic fatigue syndrome (CFS) or myalgic encephalomyelitis (ME) has a biological cause. The condition, now generally referred to as ME/CFS, which causes extreme and persistent tiredness, has long been surrounded by controversy, with some doctors maintaining it is largely a psychological disorder, while most sufferers and an increasing number of researchers believe...

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