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1.Asthma definition : ÅѡɳÐÍÒ¡
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Asthma is a disease of the lungs - specificially of the small airways, bronchioles,which become narrowed, inflamed, and choked with mucus. This bronchiole blockage causes the breathing problems that occur in asthma.
2.Symptoms
An asthma attack makes breathing in or out very difficult. This is why the classic symptoms of an attack are wheezing,coughing and shorten of breath. If airway obstruction is severe,an attack may prevent any physical exertion or may even lead to a breathing emergency. People with asthma often have normal lung function between attacks,with essentially normal breathing and no shortness of breath.
3.Who's at risk
Asthma can occur in anyone at any time in life,from infancy to adulthood. In about 1 in 4 children with asthma,
the disease gone away as they enter adolescence or adulthood. Asthma is slightly more commone in boys than girls and occurs in more Hispanic and black than white children. Medical research suggests that in some people,asthma may be at least partially inherited.
4.What cause asthma
Airway Irritants : Most asthma attacks start with an irritation of the bronchioles that triggers the airway-
narrowing response. Common causes of this irritation include allergies and upper respiratory infections. However,asthma can also be caused by exercise,acid reflux desease, aspirin and sulfites(found commonly in t=restaurant food and certain wines and beers).
5.Prevention and treatment
Therapy for asthma consists of medications designed to prevent an asthma attack as well as medications used to relieve symptoms once an attack has occured. A person with asthma must be very careful to take the correct medication at the appropriate time and not mix them up -- For example, both prevention and relief medications for asthma may be supplied inhalers. This is very important since some medications are useful only for attack prevention and do not work once an attack has occured.
For more allergies and asthma health information visit www.thailabonline.co
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