Asthma
Asthma results from complex interactions between an individual's inherited genetic makeup and their interactions with the environment. The factors that cause a genetically predisposed individual to become asthmatic are poorly understood. The following are risk factors for asthma:
- Family history of allergic conditions
- Personal history of hay fever (allergic rhinitis)
- Viral respiratory illness, such as respiratory syncytial virus (RSV), during childhood
- Exposure to cigarette smoke
- Obesity
- Lower socioeconomic status
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