Scientists Find Shared Biology Behind Fatigue in Five Major Illnesses
medical-conditions

Scientists Find Shared Biology Behind Fatigue in Five Major Illnesses

Severe fatigue can appear after very different health problems, from viral infections to trauma and autoimmune disease. Yet people with long COVID, ME/CFS, PTSD, rheumatoid arthritis, and multiple sclerosis often describe a similar experience: exhaustion that does not ease with rest, trouble concentrating, poor sleep, and a sharp drop in daily functioning. New research from […]

By Helen Hayward · September 15, 2026
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