Shortness of breath, usually appear suddenly or unexpectedly, Shortness of breath is a symptom of an illness requiring a doctor's attention. Shortness of breath can be caused by various diseases, such as asthma, blood clots in the lungs and pneumonia. There is also due to shortness of breath during pregnancy.
Causes of Shortness of Breath
Oxygen is the main energy source, it is absolutely necessary in abundance so that each cell can metabolize. Some causes of shortness of breath include: