 
 <prompt> Wetin be di disadvantage for increase cleanliness? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: The hygiene hypothesis dey try explain why asthma dey increase for people all over the world as a result of pikin dem no dey get exposure to non-pathogenic bacteria and viruses during their childhood. Dem talk say the reduced exposure to bacteria and viruses dey happen because people dey too clean and families dey too small for modern societies. Exposure to bacterial endotoxin when pikin dey small fit prevent asthma, but if e happen when person don old, e fit cause bronchoconstriction. Evidence wey dey support the hygiene hypothesis include lower rates of asthma for farms and households wey get pets. 