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  1. Jul 5, 2022 · Shortness of breath (dyspnea) has many causes, which can make it difficult to find a diagnosis. It is a serious medical complication that is most commonly caused by lung and heart problems, medications, or vascular, neuromuscular and metabolic disease.

  2. Very strenuous exercise, extreme temperatures, obesity and higher altitude all can cause shortness of breath in a healthy person. Outside of these examples, shortness of breath is likely a sign of a medical problem.

  3. Causes of Shortness of Breath. Dyspnea is usually caused by disorders of the lungs or heart (see table Some Causes and Features of Shortness of Breath). The most common causes overall include. Asthma. Pneumonia. Chronic obstructive pulmonary disease (COPD)

  4. Find possible causes of shortness of breath based on specific factors. Check one or more factors on this page that apply to your symptom.

  5. Nov 17, 2022 · Key Facts. If your breathing has become labored and difficult for no obvious reason, it may be the sign of a more serious medical problem. If chest pain or pressure, fainting or nausea accompanies shortness of breath, you should treat it as a medical emergency.

  6. Apr 9, 2021 · Causes. Patrik Giardino/Getty Images. Many people experience shortness of breath during and after exercise. It can also occur due to changes in altitude or temperature. Usually, however,...

  7. Shortness of breath can be caused by the following: Asthma. Other lung diseases, including emphysema. Heart failure that causes fluid to collect in the lungs. Panic attacks. If you are short of breath with a cough and/or fever, you may have a chest infection or pneumonia.

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