Brain and muscle chemistry in myalgic encephalitis chronic fatigue syndrome (ME CFS) and long COVID: a 7T magnetic resonance spectroscopy study Molecular Psychiatry Redox imbalance links COVID 19 and myalgic encephalomyelitis chronic fatigue syndrome PNAS The summer before my junior year at Tufts, I became sick with long COVID. Almost immediately, I began experiencing debilitating fatigue and brain fog. My right leg would collapse in on itself Fatigue, Mitochondria and the Energy puzzle