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Learning About Asthma

The number of Australians suffering from asthma is among the highest in the world. Alarmingly, children are the most common of sufferers of this bronchial disease. Even though it is not one of the major causes of death in the country, asthma is still one of the most common reasons children are hospitalized. It is important to acquire a asthma cure as early as the onset of its first symptoms. To achieve that, you need to learn all you can about asthma first.

What Is Asthma?

Asthma is a chronic disease that affects your airways, and which makes your breathing difficult. When an asthma attack occurs, there is an inflammation of your air passages. This results in the temporary narrowing of your airways that carry oxygen to your lungs.

Asthma has three major features: airway obstruction, inflammation, and airway irritability.

– Airway Obstruction or Bronchospasm – causes your airways to narrow further, and chemical mediators and nerves in your bronchial tubes causes your muscles to constrict.

Inhaling cold or dry air can cause brochospasm, which normally occurs in all humans.

– Inflammation – causes the narrowing of your bronchial tubes, making them red, irritated and swollen. It also increases the thickness of your bronchial tube walls, resulting in a smaller passageway for air to flow through. Inflammation occurs as a response to an asthma trigger by your body’s chemical mediator. The inflamed tissues then produce an excess amount of “sticky” mucus into your bronchial tubes. The mucus tends to clump together, forming “plugs” that can clog your smaller airways.

Specialized allergy and inflammation cells cause tissue damage, which accumulates in your bronchial tubes. These damaged cells then flow into your airways, contributing to the narrowing of your passageways.

– Airway Irritability – When you have asthma, your airways become extremely sensitive to triggers, such as allergens and irritants. Having your airways chronically inflamed and constricted causes this hypersensitivity. Moreover, constant exposure to these triggers may result in further inflammation and narrowing of your passageways.

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