Internet Activities Activity 7
Allergies and AsthmaWhat's the
Difference?
Do you have allergies? An allergy is an extreme sensitivity
to a substance. Perhaps you break out in a rash when you eat
strawberries, or you have a sneezing fit whenever you get
near a cat. If you do have allergies, you are not alone. In
the United States, it is estimated that 50 to 60 million people-one
in five Americans-have allergies.
Although asthma is not as common as allergies, nearly 5 million
children under age 18 suffer from asthma. Asthma is a chronic
respiratory disease that causes air passages to become narrow
or blocked, making breathing difficult. Asthma can be triggered
by many of the same substances that cause allergies. This
activity will show you how to use the Internet to discover
important facts about allergies and asthma.
After exploring these sites and completing the questions,
you will be able to