What is Chronic Fatigue Syndrome?

Chronic Fatigue Syndrome (CFS) is a complicated disorder characterized by extreme fatigue that can't be explained by any underlying medical condition. The fatigue may worsen with physical or mental, activity, but doesn't improve with rest. 

The cause of Chronic Fatigue Syndrome is unknown, although there are many theories - ranging from viral infections to psychological stress. Some experts believe Chronic Fatigue Syndrome might be triggered by a combination of factors. 

There is no single test to confirm a diagnosis of Chronic Fatigue Syndrome... Treatment for Chronic Fatigue Syndrome focuses on symptom relief. 

The above text was an excerpt taken from MayoClinic.com, for a more in-depth version, please click here.