Asthma is an incurable, but treatable chronic disease that affects mostly children with 334 million people worldwide and 25.7 million people in the United States ("CDC - Asthma," n.d.). Children can outgrow asthma in their teens if asthma symptoms develop before the age of seven. However, asthmatic symptoms may return anytime, even during adulthood. With a combination of genetics and exposures to poor air quality, children are …show more content…
Researchers have developed a hypothesis called "Hygiene Hypothesis" due to the concerning rising prevalence rate in children. The theory suggests that children may develop asthma due to the excessive hygiene and sanitation in the Western lifestyle, which cause a lack of early childhood exposure to infectious agents, microorganisms, and parasites. The lack of exposure causes young children’s immune system and increases the susceptibility to allergic disease by suppressing the natural development of the immune