Symptoms of Asthma and How it effects on Breathing

March 18, 2011 by: admin

Asthma is a disease which affects on the breathing passage of the lungs and it is caused due to chronic inflammation of that passages. Within the breathing passage, muscles may be contracted and hence it causes narrowing of airways.

Symptoms of Asthma:

–> The symptoms of the asthma is breathlessness, coughing, wheezing, chest tightness and make difficult to speaking. These symptoms may occur during night or day.

–> Wheezing is one of the most common symptom of the asthma. It is a musical sound which comes with our breathing. It often heard during the exhalation.

How it effects:
Actually asthma cause narrowing of airways and it interact with air which is always flows in and out through the lungs. It is caused by three main factors:

a) Inflammation:
It is one of the most common cause of narrowing of airways. Due to this bronchial tube bocomes more swollen and red and thus it increase the thickness of the walls of the tubes. Hence their is smaller way for passage of air and in response to the allergen an inflammation may be occur.

b) Bronchospasm:
During an attack of asthma, the muscles around the bronchial tubes become more tight and contraction of these muscles are called as bronchospasm. The nerves and chemical mediators in the bronchial tube causes the muscles contraction.

c) Hyperreactivity:
The constricted and chronically inflamed airways becomes more sensitive to triggers such as infections, allergens. The exposuring of these triggers may be result in more narrowing and inflammation.


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