Understanding Pollen and Allergies
Why might you suffer seasonally?
Put a ball of pollen into the giant nose to view the leading theory on what triggers an allergy to develop
Your immune system responds to bacteria and viral invasions in order to keep you healthy, but when your body responds the same way to a normally harmless substance, it is an allergic reaction. Researchers are trying to find out exactly why some people have allergies and others do not.