Chronic fatigue

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Source: Chronic fatigue syndrome: A review (Balachander et al.) 2014.[1]

Chronic fatigue (CF) is a symptom that can be caused many diseases, illnesses and medications. Chronic fatigue is common in a large number of illnesses including multiple sclerosis, fibromyalgia, rheumatoid arthritis, diabetes, depression, and chronic fatigue syndrome.

Chronic fatigue means the patient experiences significant and long-term fatigue, which may or may not have a known medical explanation. It should be distinguished from the disease called chronic fatigue syndrome (CFS), of which chronic fatigue is only one of many symptoms.[2] The two terms are not interchangeable. Wikipedia contains separate pages for each.

Chronic fatigue vs. Chronic fatigue syndrome and Idiopathic Chronic Fatigue[edit | edit source]

Chronic Fatigue Syndrome (CFS) is a distinct neurological disease, and is not the same as chronic fatigue, or long-term fatigue with no known cause (ICF).
Source: Son, C-G (2019). Differential diagnosis between “chronic fatigue” and “chronic fatigue syndrome”. Integrative Medicine Research, 8(2), 89-91. Suggested algorithm for chronic fatigue, ICF and CFS. License: CC-BY-ND-NC.

Dr. Jarred Younger explains chronic fatigue and begins by stating "Fatigue is not a disease and it is not even a symptom. So fatigue is a alarm system and the most general alarm system the body has."[3]Webinar with Jarred Younger, Ph.D. (Video starts with quote @6:04 and Younger discusses fatigue until @7:54)

Idiopathic chronic fatigue (ICF) refers to medically unexplained chronic fatigue lasting at least 6 months that does not meet the criteria for chronic fatigue syndrome, for example post-exertional malaise (PEM) may be mild or non-existent, and orthostatic intolerance or cognitive impairment may not be present.[2]

Examples of incorrect usage[edit | edit source]

In these examples the disease chronic fatigue syndrome is erroneously referred to using the name of only one of the many symptoms involved, chronic fatigue. Chronic fatigue is a symptom, not a disease.

Notable studies[edit | edit source]

  • 2019, Differential diagnosis between “chronic fatigue” and “chronic fatigue syndrome”[2](Full source)

See also[edit | edit source]

Learn more[edit | edit source]

References[edit | edit source]

  1. 1.01.1 Singh, Shubh Mohan; Sarkar, Siddharth; Rao, Pradyumna; Balachander, Srinivas (Jul 1, 2014). "Chronic fatigue syndrome: A review". Medical Journal of Dr. D.Y. Patil University. 7 (4): 415. doi:10.4103/0975-2870.135252. ISSN 0975-2870. 
  2. 2.02.12.2 Son, Chang-Gue (Jun 2019). "Differential diagnosis between "chronic fatigue" and "chronic fatigue syndrome"". Integrative medicine research. 8 (2): 89–91. doi:10.1016/j.imr.2019.04.005. ISSN 2213-4220. PMID 31193269. 
  3. Younger, Jarred (May 20, 2016). "Webinar with Jarred Younger, Ph.D." YouTube. SolveCFS. 
  4. Hodgekiss, Anna (Feb 11, 2015). "Chronic fatigue IS 'a real and serious disease', say doctors". Mail Online. Retrieved Sep 10, 2018. 
  5. Spencer, Ben (Feb 9, 2016). "People with chronic fatigue are 6 times more likely to commit suicide". Mail Online. Retrieved Sep 10, 2018. 
  6. Yang, Xiu Hong; Zhang, Bao Long; Gu, Yan Hong; Zhan, Xiao Li; Guo, Li Li; Jin, Hui Min (2018). "Association of sleep disorders, chronic pain, and fatigue with survival in patients with chronic kidney disease: a meta-analysis of clinical trials". Sleep Medicine. 51: 59–65. doi:10.1016/j.sleep.2018.06.020. ISSN 1389-9457. 
  7. Sigurdsson MD, Alex F. (Nov 8, 2017). "19 Important Causes of Fatigue - Tiredness and Chronic Fatigue Explained". www.docsopinion.com. Retrieved Jan 30, 2019. 
  8. Klimas, Nancy (Jun 21, 2014). "ME/CFS Diagnosis and Name with Dr. Nancy Klimas". YouTube. ME/CFS Community. 

Chronic fatigue; this persistent and abnormal is a symptom not an illness. May be caused by depression, multiple sclerosis, fibromyalgia, chronic fatigue syndrome or many other illnesses.[1]

Myalgic encephalomyelitis or chronic fatigue syndrome, often used when both illnesses are considered the same.

The information provided at this site is not intended to diagnose or treat any illness.
From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history.