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Children are already at a higher risk of developing an allergy due to their age. [5] Other risk factors include: [5] [10] [11] Having a family history of allergies or asthma; Having asthma or other allergies/allergic conditions
The prevalence of childhood asthma in the United States has increased since 1980, especially in younger children. Rates of asthma have increased significantly between the 1960s and 2008 [9] [10] with it being recognized as a major public health problem since the 1970s. [5] Some 9% of US children had asthma in 2001, compared with just 3.6% in 1980.
Environmental factors such as air pollution and allergens like dust mites and molds can also increase one's risk. "Moreover, children and adults who are overweight or obese are at a higher risk of ...
Maternal psychological stress during pregnancy is a risk factor for the child to develop asthma. [59] Asthma is associated with exposure to indoor allergens. [60] Common indoor allergens include dust mites, cockroaches, animal dander (fragments of fur or feathers), and mould.
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Children who suffer from frequent respiratory infections prior to the age of six are at higher risk of developing asthma, particularly if they have a parent with the condition. However, persons of any age can have asthma triggered by colds and other respiratory infections even though their normal stimuli might be from another category (e.g ...
Asthma triggers are factors or stimuli that provoke the exacerbation of asthma symptoms or increase the degree of airflow disruption, which can lead to an asthma attack. [1] An asthma attack is characterized by an obstruction of the airway , hypersecretion of mucus and bronchoconstriction due to the contraction of smooth muscles around the ...
The peak prevalence of hay fever is highest in children and young adults and the incidence of asthma is highest in children under 10. [67] Ethnicity may play a role in some allergies; however, racial factors have been difficult to separate from environmental influences and changes due to migration. [65]
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