Chronic fatigue syndrome may be due to an overactive immune system

UK researchers found that an exaggerated immune response can trigger long-lasting fatigue, suggesting this is how the condition — also known as myalgic encephalomyelitis or ME — begins.

https://edition.cnn.com/2018/12/17/health/chronic-fatigue-syndrome-immune-system-trigger-study-intl/index.html?no-st=1545099054