The Cause of Asthma
Researchers at Harvard Medical School may have discovered the key to what causes asthma. The body’s natural defenses agains bacteria, viruses and other harmful microbes becomes over-protective in asthama sufferers and so relatively minor irritants can cause an adverse reaction as the body seeks to protect itself.
But researchers now believe that it is not the T cells that respond to those minor irritants that are the real cause of asthma. Instead they now feel that it is a smaller group of cells - commonly known as natural killer T cells that are the real cause.
Unfortunately these cells do not respond well to the steroids found in mots widely used inhalers.
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