All you need to know about Asthmatic condition
Friday, 19 June 2015
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Asthma is a condition that affects the respiratory system. Though the exact cause of this condition is |
This article provides information about the various causes of this condition. The term ‘asthma’ has been derived from an old Greek word which means ‘to pant’. It is basically a chronic condition which affects the air passages when they are stimulated by environmental factors or allergens that act as triggers. There are two particular ways in which the air passage responds to asthmatic triggers: 1. hyper responsiveness and, 2. inflammation.
When these responses occur, it results in the typical symptoms such as coughing, wheezing, and laboured respiration.
Inflammation: Inflammation follows the hyper responsive stage. When the air passages are subjected to allergens or any other environmental triggers, the immune system kicks in, delivering immune factors like white blood cells to the area. These cause the air passages to become swollen, fill up with fluid, and produce sticky, thick mucus. These altogether initiates breathlessness, wheezing, the inability to inhale or exhale adequately, and a cough that produces phlegm. This inflammatory response is found in everybody afflicted with asthma, even mild cases.
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What Exactly Causes Asthma?
While what exactly causes asthma is still not fully understood, research has shown that it can be triggered by many factors including;
-Genetics: Scientists and doctors accept the fact that asthma is a hereditary disease. But, they have not yet identified the gene, or genes, that are involved in this condition. It is thought that the genes that are associated with asthma are linked to the immune system and the lungs. It is widely known that ‘atopic diseases’, like asthma, allergic rhinitis, and dermatitis, occur in some form or the other in families.
-Immune System: Research has revealed that the immune system of adults and children who have respiratory problems responds quite differently compared to others. People who have asthma are generally allergic, and have allergic reactions to factors that cause no problems to others. The immune system of allergic people overreacts when exposed to ordinary substances like cat dander, mold, and pollen. Sometimes, the immune system could even overreact to bacteria and virus, increasing the chances of an asthma attack.
-Childhood: The initial months as well as years in the life of a child are vital periods during which he/she could become predisposed to developing this condition. This is due to the abnormalities in the development as well as growth of the lungs. Premature babies are particularly vulnerable to respiratory diseases and infections, since their lungs are not completely developed when they are born. Sometimes, an infection could lead to inflammation, thereby injuring the tissues of the lungs.
Research is still ongoing to understand better how the above factors affect the development of allergies like asthma. Get the facts and share what you know