Sweeping chronic fatigue study brings clues but not clarity to mysterious syndrome ScienceNIH study of ME/CFS points to clear biological hallmarks - STAT STATScientists find link between brain imbalance and chronic fatigue syndrome The GuardianPeople with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome May Have an "Exhausted" Immune System Scientific AmericanStudy of Patients With a Chronic Fatigue Condition May Offer Clues to Long Covid The New York Times