Muscle fatigue associated with brain inflammation could be prevented by modulating certain cytokines. Researchers at Washington University in St. Louis (WUSTL) have studied inflammation in the CNS in infection models of Escherichia coli, SARS-CoV-2 and amyloid-β toxicity, unveiling its impact on motor function, the role of IL-6 in this process and how to mitigate it in chronic disease.