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.
Anne C. Poinier, MD - Internal Medicine & Nancy Greenwald, MD - Physical Medicine and Rehabilitation
How this information was developed to help you make better health decisions.
The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.