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Dyspnea, also called air hunger or shortness of breath, is a symptom of ME/CFS.


  • 79.2% - 83.5% of the 2073 patients in a Belgian study of 2001 reported dyspnea after exertion.[1]
  • Katrina Berne reports a prevalence of 30-70% for shortness of breath.[2]

Symptom recognition[edit]

Exertional dyspnea is noted as a symptom of the autonomic nervous system in the Canadian Consensus Criteria, and is included in the criteria for diagnosis of CFS.[3]

It is also included in the criteria for diagnosis in the International Consensus Criteria, under Energy production/transportation impairments.[4]

It is not described in any other definitions.

Notable studies[edit]

Possible causes[edit]

Potential treatments[edit]

Learn more[edit]

See also[edit]


  1. De Becker, P; McGregor, N; De Meirleir, K (Sep 2001), "A definition-based analysis of symptoms in a large cohort of patients with chronic fatigue syndrome.", Journal of Internal Medicine, 250 (3): 234-240, PMID 11555128 
  2. Berne, Katrina (1 Dec 1995), Running on Empty: The Complete Guide to Chronic Fatigue Syndrome (CFIDS), 2nd ed., Hunter House, p. 58, ISBN 978-0897931915 
  3. A Clinical Case Definition and Guidelines for Medical Practitioners: An Overview of the Canadian Consensus Document
  4. Carruthers, BM; van de Sande, MI; De Meirleir, KL; Klimas, NG; Broderick, G; Mitchell, T; Staines, D; Powles, ACP; Speight, N; Vallings, R; Bateman, L; Baumgarten-Austrheim, B; Bell, DS; Carlo-Stella, N; Chia, J; Darragh, A; Jo, D; Lewis, DP; Light, AR; Marshall-Gradisnik, S; Mena, I; Mikovits, JA; Miwa, K; Murovska, M; Pall, ML; Stevens, SR (22 August 2011), "Myalgic encephalomyelitis: International Consensus Criteria", Journal of Internal Medicine, 270 (4): 327–338, PMID 21777306, doi:10.1111/j.1365-2796.2011.02428.x 

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