Long COVID is not just viral. It's oxidative and inflammatory. Research suggests that low glutathione levels and excess oxidative stress play a major role in long COVID symptoms like fatigue, brain Oxidative stress is a shared characteristic of ME CFS and Long COVID PNAS Long COVID and Oxidative Stress: Brain Fog, Fatigue, and Cellular Damage Explained covidCAREgroup If fatigue, brain fog, or crashes make everything feel harder, strengthening the basics can make a real difference. Supporting mitochondrial function is a core piece of many Long COVID and ME CFS treatment