What is asthma and what are the signs / symptoms of asthma?
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| Via: frenchtribune.com |
In the USA there are over 500,000 asthmatics. Asthma is a respiratory disease that is associated with a chronic inflammatory response in the respiratory tract. The result is increased excitability of the respiratory tract.
This is reflected in a narrowing of the airway. The flow rate of air in the respiratory tract is reduced. This is experienced as anxiety and is accompanied by wheezing. The chronic inflammation also leads to an increase in mucus production, and cough.
Asthma is a chronic disease. One of the features of asthma is that the severity of the airway narrowing quite variable. Between the anxiety attacks is the normal lung function, or normal to get through the use of certain medications. The course of asthma can vary from day to day, but also vary with the seasons.
Another important feature of asthma is the increased arousal (hyperreactivity) of the airways. That is, the respiratory tract and previously react more strongly to external stimuli. This can cause allergic stimuli, eg dust, dander from a cat or pollen of grasses and trees, but also non-allergic stimuli such as smoke, fog, cold air, exercise, stress and emotion.
