The hygiene hypothesis holds that asthma is a result of _____ that has become common in modern society.

Question

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The hygiene hypothesis suggests that asthma is a result of increased cleanliness and reduced exposure to microorganisms, such as bacteria and viruses, in modern society. This lack of exposure to germs during childhood may cause the immune system to overreact to harmless substances later in life, leading to asthma and allergies. Dust mites, while they can be a trigger for asthma, are not the cause of the condition according to the hygiene hypothesis. Industrial pollution and cigarette smoking can worsen asthma symptoms, but they are not considered the root cause of the condition by this theory.

The Hygiene Hypothesis Holds That Asthma Is a Result of _____