With respect to asthma, the hygiene hypothesis is supported by data showing that _____.
A) children born by vaginal delivery have more asthma
B) farm children have less asthma and other allergies
C) later-born children develop asthma more often than first-born children
D) city children have less asthma and fewer allergies

Question

Quizplus · Accepted Answer

The hygiene hypothesis suggests that early childhood exposure to a variety of environmental stimuli, including bacteria and other infectious agents, is important in the development of the immune system and the prevention of allergies and asthma. Studies have shown that children who grow up on farms, which tend to have more diverse environmental exposures, have a lower risk of developing asthma and other allergies. The other choices given are not consistent with the hygiene hypothesis.

With Respect to Asthma, the Hygiene Hypothesis Is Supported by Data