Furthermore, Mousa et al. confirmed higher levels of HMGB1 in schizophrenic patients and additionally identified HMGB1 as one of the six main predictors of scores on the FF scale (the fibromyalgia and chronic fatigue syndrome rating scale in schizophrenics) [102,103]. The gene discussed is HMGB1; the disease is myalgic encephalomeyelitis/chronic fatigue syndrome.