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9 Early signs and symptoms of Asthma

By: Team Ifairer | Posted: 12-10-2016
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9 Early signs and symptoms of Asthma
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Asthma is a chronic disease involving the airways in the lungs. These airways, or bronchial tubes, allow air to come in and out of the lungs. Asthma is thought to be caused by a combination of genetic and environmental factors. Environmental factors include exposure to air pollution and allergens. In 2013, 242 million people globally had asthma up from 183 million in 1990.  It caused about 489,000 deaths in 2013,  most of which occurred in the developing world. Common signs and symptoms of asthma are-
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9 early signs and symptoms of asthma, warning signs and symptoms for asthma, symptoms of asthma, asthma, health tips, ifairer

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