(En español: Asma) 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 breathe.