The exact cause of asthma remains unknown, although certain factors are known to influence the development. The inflammation that occurs in asthma results in smaller airways and makes air exchange more difficult for the lungs, causing periodic attacks of wheezing, shortness of breath, chest tightness and coughing.
Genetic Predisposition
The National Heart Lung and Blood Institute suggests a genetic predisposition as a reason for developing asthma. Individuals with a family history of asthma, such as parents or others in the family who have the condition, often develop it as well.
History of Allergies
Asthma develops along with a history of allergies and the interaction between airborne allergens, irritants and the airway. Types of allergens that influence allergies and aggravate asthma include dust mites, mold, animal dander, pollen and cockroaches. Other allergy-causing substances that trigger asthma include respiratory irritants, such as tobacco smoke, fumes and gases. Different allergens trigger symptoms in asthma-prone individuals, but the type of reaction varies from person-to-person, as either mild or severe. Reduce asthma symptoms by avoiding known triggers and substances that irritate the airways. Although no cure exists for asthma, symptoms sometimes improve over time. Individuals with asthma can lead normal lives with proper self-management and medical treatment.
Immune System Development
According to the American Academy of Allergy Asthma and Immunology, asthma develops most often early in life and has become the most serious disease in children.The immune system continues developing throughout infancy and early childhood, and contact with a viral infection or allergen during that developmental time, proposes a reason for asthma. The current emphasis on hygiene caused an overall decline in infections in early childhood. Improvements in sanitary practices appear non-threatening; however, many young children no longer experience the same types of environmental exposures and infections as children did in the past. For instance, a previous infection results in immunity as the immune system produces appropriate antibodies that helps fight off the infection. The immune systems in children today don't contend with as many infections as once did, considering the evolution in hygienic practices currently followed. Children with poor immune function experience an increased risk for developing allergies and asthma-related problems.
