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Asthma is a chronic condition affecting populations around the world. Public attention has recently focused on this condition because its prevalence and the associated mortality rate have increased over the last several decades. While familial aggregation is observed, no clear pattern of segregation can be discerned. Most likely, there are multiple genetic, developmental, and environmental factors which interact to produce the overall condition. Asthma is a complex disease characterized by bronchial hyperresponsiveness (BHR), inflammation, Mucus production and intermittent airway obstruction. A person with asthma may experience wheezing, shortness of breath, chest tightness and cough particularly after exposure to an allergen, cold air, exercise, or when emotional. Asthma is treated with drugs, whether inhaled or in the form of tablets, but there are lifestyle changes which can be used to reduce exacerbations... |
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