Health Encyclopedia

Chronic Fatigue Syndrome

Chronic Fatigue Syndrome

Chronic fatigue syndrome means that you feel so tired that you can no longer do your normal daily activities. There are other symptoms too, but being very tired for at least 6 months is the main one. Many people improve in a year or two. Some people continue to have severe fatigue and other symptoms for many years.

Last Revised: January 18, 2013

Author: Healthwise Staff

Medical Review: Anne C. Poinier, MD - Internal Medicine & Nancy Greenwald, MD - Physical Medicine and Rehabilitation

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