ASTHMA "Asthma is a respiratory disease in which spasm and constriction of the bronchial passages and swelling of their mucous lining cause obstruction of breathing." (Anastasiow 1997) Etiology: " This disease is often due to allergies, such as dust, smoke, cold air, exercise, animal fur or feathers, molds, and pollen. Allergic asthma is also called atopic or extrinsic asthma. Many people with allergic asthma also suffer from hay fever, which is an allergic reaction, usually to airborne pollen, of the upper respiratory tract and the eyes, characterized by nasal discharge, sneezing, and itchy watery eyes." (Encarta 1997) Asthma in adults is less likely to be caused by allergies. Non-allergic asthma is called intrinsic asthma. The frequency and the extreme in which asthma symptoms occur vary from one person to another. Most attacks occur at night....

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