Always tired? Your immune system may be overactive

a post by Stephen Johnson for the Big Think blog

A new study provides strong evidence that chronic fatigue syndrome is linked to abnormal reactions in the immune system.

• Chronic fatigue syndrome affects millions of people worldwide, but scientists still aren't quite sure what causes it.
• A new study tracked people suffering from Hepatitis C (HCV) as they underwent a treatment course.
• The results showed that people with overactive immune responses developed chronic fatigue months following the treatment, and that the fatigue persisted even after their immune responses returned to normal.

A new study builds upon previous research showing that an overactive immune system might be a key cause of chronic fatigue syndrome.

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