The Allergy Asthma Link
|Don’t let your children’s allergies take their breath away.||Darrell Miller||10/24/05|
October 24, 2005 08:37 AM
Author: Darrell Miller (firstname.lastname@example.org)
Subject: Don’t let your children’s allergies take their breath away.
The Allergy-Asthma Link
Don’t let your children’s allergies take their breath away.
It may be back to school season but, according to the first National Allergy Awareness Test administered last year by the Allergy and Asthma Foundation of America (AAFA), most allergy sufferers don’t make the grade in terms of understanding allergy triggers and taking preventative measures before symptoms occur.
This may come as a surprise since approximately 20% of Americans face each day red-eyes and wheezy due to environmental allergies, including allergic asthma. About 75% of them endure both perennial allergic rhinitis, or indoor allergies, as well as seasonal allergic rhinitis, better known as hay fever. Since these statistics translate into a relentlessly runny nose for about one in every five children in the US, allergy is clearly nothing to sneeze at.
How Allergies Lead to Asthma
An allergic reaction happens when the immune system responds to agents known as antigens or allergens (think pollen or cat dander). Repeated exposure to an allergen provokes the body to produce a substance called IgE (immunoglobin E), which in turn promotes production of such inflammatory chemicals as histamine and leukotrienes. The release of these chemicals is responsible for the telltale symptoms of runny nose, watery eyes and sneezing. In children, allergies also appear to be related to frequent ear infections.
In asthma, air passages in the chest are restricted or inflamed. This breath-robbing disorder can be classified into two types: allergic and non-allergic. In the first case, an episode is triggered by an allergic reaction to a substance, such as pet dander, while the second type is associated with other factors, such as anxiety or physical exertion. Asthma is a hereditary disease, but there does seem to be a correlation between allergy and asthma since nearly 80% of children with asthma also have allergies.
“Asthma affects over 17 million Americans,” says Steven J. Brock, MD, author of Natural Relief for Your Child’s Asthma (Harper Collins,“and approximately one third of them-5 million- are under the age of 16, making it the nation’s leading cause of chronic illness in children.” Nearly one out of every 14 American children between the ages of 5 and 14 are affected by the disease, and in large cities those numbers range even higher.
It appears that air pollution is contributing to the increased incidence of allergy and asthma, especially for children living in inner cities. A review published in the Journal of Allergy & Clinical Immunology reports that the pollutant ozone can increase response to inhaled allergens and has been linked with an increased risk of asthma development among children playing outdoor sports. The review also cites nitrogen oxides, sulfur dioxide and diesel exhaust particulates as being linked to increased airway inflammation and sensitivity to allergens.