What Is An Allergy
What Is An Allergy?
There’s a lot of talk about allergies. But just what is an allergy and what causes them? Why do some people have them while others don’t? And why are people with one allergy more inclined to have many?
The immune system is set up to protect our bodies from harmful, foreign substances. Like viruses and bacteria (dirt and germs). Sometimes the immune system doesn’t develop properly or is just oversensitive and doesn’t react right.
In these cases, it reacts to things that aren’t harmful and don’t usually cause people any problems. These things are called allergens. The term allergens is just an easier way to say “things that cause allergies”.
When the oversensitive or improperly developed immune system sees these allergens, it sends out chemicals like histamine. It’s the histamines that cause the symptoms that are common with allergies.
Symptoms like itching, watery eyes, runny nose, swelling, hives or rashes. Different people have different symptoms, but the causes are the same.
The symptoms that are displayed depend on the part of the body the allergen comes in contact with. Allergens that are breathed in, like pollen or dust cause coughing or wheezing, stuffy or runny noses and an itchy nose and throat.
Plant allergies usually come in contact with the skin, so they cause rashes.
Food allergies usually result in nausea, vomiting, stomach pains or in severe cases, life threatening reactions. Drug allergies tend to involve the entire body, so they have a variety of symptoms.
This entry was posted on Friday, March 14th, 200
More Articles
Greece Land Of The Gods And Men
Neat Bathing Suits For The Pregnant Mommy
About Marine Surveys For Boat Insurance
Massively Multiplayer Online Role Playing Games
More Articles
... the low tide is really low and when the tide turns, you d better be running for shore! The tides this far north are fast and wild and you had better be prepared, whether you are beachcombing or kayaking. Winter Harbor and Corea exist on a lovely and quiet peninsula west of Bar Harbor and parts of the ...
... as do boats seeking pleasure or fish, or both. The drive to Key West could not ever be described as bad. It is beautiful; something new around every bend or over every bridge, especially the seven-mile bridge. Pelicans, ungainly yet graceful, glide beside your car as you speed along the highway. Islamorada ...
What You Need To Know About Cheesecakes
... pie but also the capability to incorporate other certain types of ingredients. Additionally, thinly made cheesecake batter will not be structurally sound but can also tend to fall apart at the table. However, one method of avoiding this is through the use of unflavored gelatin or cornstarch beaten with ...
... associated with seasickness. One of the great things about these bands is that there aren't any drugs involved, so there aren't any side affects. These bands don't work for everyone, but for those who have tried them and found that they worked are very happy with the results. Something to remember about ...
... when something is created. Typically the year, month and date are used when describing the birthday of an entity. Businesses often have a birthday to celebrate. That is usually the day the company was created. So not only do we as people celebrate the day we were brought into this world, but we like to ...
