Brain health depends on balance. From energy production to antioxidant protection and immune regulation, multiple systems work together to support how the brain functions. Glutathione plays a central role in maintaining Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Potentiation of glutathione loss and nerve cell death by the transition metals iron and copper: Implications for age related neurodegenerative diseases ScienceDirect Antioxidant Therapies in Traumatic Brain Injury Frontiers Glutathione deficiency in the pathogenesis of SARS CoV 2 infection and its effects upon the host immune response in severe COVID 19 disease Frontiers Glutathione metabolism as a key regulator of oxidative hippocampal injury in sepsis associated encephalopathy: an integrated proteomics and metabolomics study