Obesity & Wheezing
Obesity has been linked to several health risks, including heart disease, diabetes and cancer. In addition, obesity, which is defined as a body mass index of 30 or more, may also be linked to difficulty breathing, wheezing and asthma. If you are wheezing frequently and suspect obesity may be related, consult your doctor for an evaluation.
Wheezing happens when a person is breathing through constricted or narrowed airways, resulting in high-pitched whistling-like noises that accompany each breath. Obesity is recognized as a possible cause of wheezing, reports the University of Massachusetts Medical School. Among obese children, the rate of wheezing was measured at almost 70 percent in one study published in the January 2011 issue of the "Italian Journal of Pediatrics."
Ribs Cracking and Stretching
In addition to wheezing, obesity has also been linked to other symptoms of asthma including coughing, difficulty breathing and chest tightness. In particular, obesity seems to be strongly linked with severe asthma. In one study of people forced to go to the emergency by severe asthma symptoms, roughly 75 percent were either overweight or obese, reports an article published in the April 2006 issue of the journal "Pharmacology and Therapeutics."
The effect of obesity on wheezing and asthma may be related to an increased risk of sleep apnea and other sleeping disturbances among obese people. People with sleep apnea stop breathing for brief periods of time while sleeping, leading to poor sleeping, daytime sleepiness and exhaustion. People who are overweight or obese have an increased risk of sleep apnea, reports the Weight-Control Information Network.
The reason obesity causes wheezing and other breathing difficulties is not fully understood. One theory is that higher levels of fat around the neck may constrict the airways, making breathing harder, especially when lying down, explains the Weight-Control Information Network. In addition, high levels of fat may also result in inflammation of the airways, increasing the risk of asthma. Obesity also raises the risk of gastroesophageal reflux and reduces lung capacity, both of which may contribute to wheezing and asthma, reports "Pharmacology and Therapeutics."
- The reason obesity causes wheezing and other breathing difficulties is not fully understood.
- One theory is that higher levels of fat around the neck may constrict the airways, making breathing harder, especially when lying down, explains the Weight-Control Information Network.
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- "Pharmacology and Therapeutics"; Obesity and Asthma; S.A. Shore and R.A. Johnston; April 2006
- Weight-control Information Network: Do You Know the Health Risks of Being Overweight?; December 2007
- "American Journal of Respiratory and Critical Care Medicine"; Associations of Obesity, Sleep-Disordered Breathing, and Wheezing in Children; L.G. Sulit et al.; March 2005
- "Italian Journal of Pediatrics"; Relationship Between Obesity and Asthma Symptoms Among Children in Ahvaz, Iran: a Cross Sectional Study; T.Z. Kaibaf et al.; January 2011
- University of Massachusettes Medical School: Causes of Wheeze
- Quirt J, Hildebrand KJ, Mazza J, Noya F, Kim H. Asthma. Allergy Asthma Clin Immunol. 2018;14(Suppl 2):50. doi:10.1186/s13223-018-0279-0
- Martinez JA. Not all that wheezes is asthma!. J Bras Pneumol. 2013;39(4):518-20. doi:10.1590/S1806-37132013000400017
- Wu F, Jacobs D, Mitchell C, Miller D, Karol MH. Improving indoor environmental quality for public health: impediments and policy recommendations. Environ Health Perspect. 2007;115(6):953-7. doi:10.1289/ehp.8986
- Lampkin SJ, Maslouski CA, Maish WA, John BM. Asthma review for pharmacists providing asthma education. J Pediatr Pharmacol Ther. 2016;21(5):444-471. doi:10.5863/1551-6776-21.5.444
- Medline Plus. Wheezing
- Patient Information- University of Maryland Medical Center. Wheezing
Matthew Busse has pursued professional health and science writing since 2007, writing for national publications including "Science Magazine," "New Scientist" and "The Scientist." Busse holds a doctorate in molecular biology from the University of California-San Diego.