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Asthma is a common long-term inflammatory disease of the airways of the lungs. [4] Asthma occurs when allergens, pollen, dust, or other particles, are inhaled into the lungs, causing the bronchioles to constrict and produce mucus, which then restricts oxygen flow to the alveoli.
During an asthma episode, inflamed airways react to environmental triggers such as smoke, dust, or pollen. The airways narrow and produce excess mucus, making it difficult to breathe. In essence, asthma is the result of an immune response in the bronchial airways. [3]
Hay fever, asthma: In hay fever and asthma, inner lining in bronchioles become inflamed and create an excess amount of phlegm that can clog up air pathways. [13] Air pollution: In studies of children, air pollutants have been found to increase phlegm by drying out and irritating parts of the throat. [citation needed]
Other causes can include acid reflux, asthma, allergies, or other chronic medical conditions, adds Richard Watkins, M.D., an infectious disease physician and professor of medicine at the Northeast ...
A lot of different things can cause a cough. But coughs are usually broken down into two main categories: acute and chronic. Acute coughs are ones that come on suddenly, usually due to an illness.
Asthma and Allergy Foundation of America, Allergy Facts and Figures, Accessed 09/07/22 Clifford Bassett, M.D. , allergist at NYU Langone Health based in New York City
Airway remodelling is a multifaceted process involving multiple airway tissues. These include goblet cell hyperplasia, leading to increased mucus production, and airway smooth muscle hypertrophy (or smooth muscle cell hyperplasia), leading to the release of pro-inflammatory and pro-fibrotic messengers contributing to subepithelial fibrosis.
You’re not imagining things if it feels like your asthma is worse in the winter. You’re also not alone, as more than 25 million Americans suffer from asthma.. This chronic disease causes the ...
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