Monday, January 23, 2012

Asthma Symptoms, Cause, Types

Asthma is the common chronic inflammatory disorder. It is carry by air variable. It is a disease that causes by the airof the lungs to swell and narrow, leading to wheezing, shortness of breath, chest tightness, and coughing.

The airways are tubes that carry air into and out of your lungs. People who have asthma have inflamed airways. Thismakes the airways swollen and very sensitive. They tend to react strongly to
certain inhaled substances.

When the airways react, the muscles around them tighten. This narrows the airways, causing less air to flow into the lungs. The swelling also can worsen, making
the airways even narrower. Cells in  the airways may make more mucus than normal. Mucus is a sticky, thick liquid that can further narrow your airways.

This chain reaction can result in asthma symptoms. Symptoms can happen each time the airways are inflamed.

Signs and symptoms
1. Animals (pet hair)
2. Dust
3.Changes in weather (most often cold weather)
4.Chemicals in the air or in food
8.Respiratory infections, such as the common cold
9.Strong emotions (stress)
10.Tobacco smoke

Common symptoms of asthma include wheezing, shortness of breath, chest tightness and coughing, and use of accessory muscle. Symptoms are often worse at night or in the early morning, or in response to exercise or cold air.

Causes of Asthma
In short,  asthma affects people of all ages, but it most often starts during childhood. In the United States, more than 22 million people are known to have asthma. Nearly 6 million of these people are children.

Asthma | Paralysis | kidney stone | Bone cancer | Arthritis Human Hearts | Heart Disease | Bone cancer | Swine flu (H1N1) | Gonorhea | Hepatitis | AIDS