There is no clear explanation why some people have asthma and others don’t, but there is ongoing research on this subject. Factors that might put certain people at a higher risk for asthma are:
- Genetics: You might be at a higher risk of having asthma if there is a family history of asthma or allergic diseases.
- Allergies: You might be at a higher risk of developing asthma if you have allergies to smoke, tobacco, outdoor air pollution, pets, mould, dust mites, etc.
- Respiratory infections: Viruses such as Respiratory Syncytial Virus (RSV) can damage the developing lungs of young children leading to asthma.
- Environmental factors: Certain allergens (allergy-causing substances), fumes, toxins and smoke might cause asthma in some people as they might irritate the airway. This can significantly harm children in whom the immune system is undeveloped.
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