Asthma is caused by inflammation (swelling) of the airways. This inflammation makes the airways highly sensitive, so they temporarily become narrow. This may occur randomly, or after exposure to a trigger.
Common asthma triggers include:
- Allergens, such as house dust mites, animal fur and pollens
- Other irritants, such as cigarette smoke, strong smells, gases and cold air
- Chest infections
Asthma affects every individual differently, the affects tend to come and go but for some they are more persistent; therefore if you are suffering from symptoms of an asthma attack regularly, you should contact your doctor on how to prevent the symptoms.
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