Chronic fatigue syndrome Chronic fatigue syndrome CFS , also referred to as myalgic encephalomyelitis ME , is a medical condition characterized by long term fatigue and other long term symptoms that limit a person s ability to carry out ordinary daily activities. While the cause is not understood, proposed mechanisms include biological, genetic, infectious and psychological. Myalgic Encephalomyelitis Chronic Fatigue Syndrome ME CFS Myalgic encephalomyelitis chronic fatigue syndrome ME CFS is a serious, long term illness that affects many body systems People with ME CFS are often not able to do their usual activities At times, ME CFS may confine them to bed People with ME CFS have severe fatigue Chronic Fatigue Syndrome CFS MedlinePlus What is chronic fatigue syndrome Chronic fatigue syndrome CFS is a serious, long term illness that affects many body systems Another name for it is myalgic encephalomyelitis chronic fatigue syndrome ME CFS. Steps to Overcome Chronic Fatigue Syndrome Dr Axe Chronic Fatigue Syndrome is a chronic illness characterized by extreme fatigue that lasts for than six months This fatigue cannot be explained away by an underlying medical condition. Chronic fatigue syndrome Symptoms and causes Mayo Clinic 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. Chronic fatigue syndrome Symptoms, treatment, and causes Chronic fatigue syndrome is a condition of prolonged and severe tiredness or weariness It is not relieved by rest and is not directly caused by other conditions. Chronic Fatigue Syndrome Symptoms, Treatment Tests Chronic fatigue syndrome also called CFS is a disorder without a known cause, although CFS may be related to a previous infection CFS is a state of chronic fatigue that exists without other explanation for six months or and is accompanied by cognitive difficulties problems with short term memory or concentration You may have CFS if you meet the following criteria Chronic fatigue syndrome Acupuncture Chronic fatigue syndrome is characterised by severe, disabling fatigue, and other symptoms such as musculoskeletal pain, sleep disturbance, impaired concentration and headaches Reid . Chronic Fatigue Syndrome Causes, Symptoms, and Treatment Chronic fatigue syndrome CFS is a debilitating disorder characterized by extreme fatigue or tiredness that doesn t go away with rest and can t be explained by an underlying medical condition Chronic Fatigue Syndrome HealthyWomen Overview Myalgic encephalomyelitis, formerly known as chronic fatigue syndrome and now often referred to as ME CFS, was recently redefined and renamed to accurately reflect the brain inflammation and multisystem symptoms of the disease.