A debilitating and complex disorder characterized by profound fatigue that lasts 6 months or longer, is not improved by bed rest, and may be worsened by physical or mental activity. Abbreviated CFS. Persons with CFS most often function at a substantially lower level of activity than they were capable of before the onset of the illness. In addition [..]

A condition that lasts for more than 6 months in which a person feels tired most of the time. They may also have trouble concentrating and carrying out daily activities. Other symptoms include sore th [..]

a complex disorder characterized by extreme fatigue that lasts six months or longer, and does not improve with rest or is worsened by physical or mental activity. Other symptoms can include weakness, [..]

Chronic fatigue syndrome (CFS) is a disorder that causes extreme fatigue. This fatigue is not the kind of tired feeling that goes away after you rest. Instead, it lasts a long time and limits your abi [..]

A disorder of ongoing, severe tiredness that interferes with a person's ability to function well, isn't improved with rest, and isn't caused by another illness.

Chronic fatigue syndrome is characterised by long-lasting, disabling fatigue for which no cause can be found. People with chronic fatigue syndrome may also experience concentration loss, joint or musc [..]

A Syndrome characterized by persistent or recurrent Fatigue, diffuse Musculoskeletal Pain, Sleep disturbances, and subjective cognitive impairment of 6 months duration or longer. Symptoms are not caus [..]

A condition lasting for more than 6 months in which a person feels tired most of the time and may have trouble concentrating and carrying out daily activities. Other symptoms include sore throat, fever, muscle weakness, headache, and joint pain. Also called CFS.

refers to a chronic condition in which individuals experience six or more months of fatigue accompanied by physical and cognitive symptoms. Chronic fatigue, immune dysfunction syndrome, and myalgic encephalomyelitis are currently preferred. Do not say Yuppie Flu. Also, don’t confuse this syndrome with overlapping or similar conditions such as Epste [..]

(pathology) A condition characterized by immune, endocrine and neurologic pathology whose main symptoms are extreme fatigue, extremely low stamina, muscle pain, lymph node swelling, postexertional m [..]