Someone with asthma
can have trouble breathing because of problems with the airways, the tubes that carry
air into the lungs.
The airways can get irritated, swollen (puffed up), and narrow (like a pinched straw),
which makes it difficult to breathe. Many things can trigger an asthma attack, like
viruses, allergies, smoke, and even exercise. Of course, breathing is really important,
so someone who has asthma may need to see a doctor regularly and carry special medicine to make it easier to