Respiration
Asthma
Asthma affects the
airways of the lungs (the bronchi) which
causes the airways to become inflamed and
swollen. The bronchi are small tubes that
carry air in and out of your lungs. If you
have asthma, the bronchi are more sensitive
than normal and certain substances, or
triggers, can irritate them.
Common triggers include
house dust mites, animal fur, pollen,
tobacco smoke, cold air, and chest
infections.
When the bronchi are
irritated, they become narrow and the
muscles around them tighten, which can
increase the production of sticky mucus, or
phlegm. This makes it difficult to breathe,
and causes wheezing, coughing, and it may
make your chest feel tight.
-
Who for: Anyone
-
Referral: Self
-
Cost: No charge
Contacts
Website:
http://www.asthma.org.uk
Telephone: 02077864900
Informationline: 08457010203
Fax:
0207 256 6075
