Here's what you need to know to support recovering from LONG COVID 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 Long COVID Colorado Department of Public Health and Environment Long COVID post viral chronic fatigue and affective symptoms are associated with oxidative damage, lowered antioxidant defenses and inflammation: a proof of concept and mechanism study Molecular Psychiatry Long COVID treatment: Does your vitamin D level play a role? News Yale Medicine