A new blood test accurately diagnoses chronic fatigue syndrome.
Here are typical warning signs
Inflammation drives the often debilitating condition, new research suggests
Study suggests body amplifies fatigue signals, even during periods of rest
Little by little, patients step up activity levels as an expert coaches via phone or online video
Intestinal bacteria yield clues to the mysterious ailment, researchers say
Researchers point to 'atypical' CFS, where symptoms don't begin suddenly
With disappointing study results, there's still no cure for the mysterious disorder