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Asthma

Asthma

Asthma Introduction What is asthma? Asthma is a variable condition that affects the airways – the small tubes that carry air in and out of the lungs. People with asthma have airways that are sensitive and become inflamed. Their airways can react badly when they have a cold or other viral infection, or when they come into contact with an asthma trigger (a trigger is something that sets off asthma symptoms – see section below) When this happens the muscles…

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