Pollution (dirty air) is a big trigger for asthma as it makes it difficult to breathe and affects the health of humans, animals, and plants. Avoiding pollution helps prevent asthma symptoms!
Asthma is a long term illness of the lungs that causes the tubes that carry air into and out of the lungs (airways) to become swollen (inflamed) and produce lots of thick mucus.
In a person with asthma, the lung swelling (inflammation) makes the airways “twitchy”; this means they close easily... with certain things like viral infections, cold air, allergens, exercise, and smoke.
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When someone is having an asthma attack, their airways go into spasm which causes tightness of the chest; the linings of the airways become inflamed and phlegm is produced further obstructing the airways and leading to severe difficulty in breathing (Fig. 1). Asthma does lead to fatalities and shoul...d always be taken seriously.
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