Post-Viral Fatigue is a condition that can occur after a viral infection, where individuals experience prolonged fatigue and a range of other symptoms. This fatigue is not relieved by rest and can significantly impact daily activities. Common viral infections associated with this condition include COVID-19, influenza, and mononucleosis. Symptoms of Post-Viral Fatigue may include muscle weakness, cognitive difficulties, and sleep disturbances. The exact cause is not fully understood, but it is believed to involve immune system responses and inflammation. Management often focuses on gradual return to activity and symptom relief, as there is no specific cure for this condition.