What Are the Causes of Childhood Asthma?

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Causes

The exact causes of childhood asthma is unknown. But for allergic asthma, an overly sensitive immune system generally plays a role. Other factors may play a role including:
  • Inherited traits
  • Some types of airway infections at a very young age
  • Exposure to environmental factors, such as cigarette smoke or other air pollution
  • Viral infections such as the common cold
  • Exposure to air pollutants, such as tobacco smoke
  • Allergies to dust mites, pet dander, pollen or mold
  • Physical activity
  • Weather changes or cold air
Keywords: childhood asthma causes; causes childhood asthma; childhood asthma cause.    
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