Chronic Fatigue Syndrome (CFS) is long-term tiredness (fatigue) that does not go away with sleep, or rest, and affects everyday life. CFS is also known as ME (myalgic encephalomyelitis). Myalgia is muscle pain, and... » Read on

The main symptom of CFS is persistent fatigue (tiredness) and exhaustion. This does not go away with sleep or rest, and limits the activities you were once capable of. Fatigue is mental as well as physical, and some... » Read on

The exact cause of CFS is unknown, although there are several theories. Some people think that a viral infection, such as glandular fever, can trigger the condition. Tiredness is normal after a viral infection, but... » Read on

There is no test to diagnose CFS. Many people consult their doctor thinking they have CFS, but only a small minority are diagnosed with the condition. CFS is not diagnosed in people who simply feel tired all the time... » Read on

There is no specific treatment for CFS. Sometimes, simply diagnosing CFS and giving advice about how to deal with it can help. CFS tends to last for months, if not years, but most people do recover, or adjust their... » Read on