According to two researchers, Nesse and Williams, diarrhea may function as an evolved expulsion defense mechanism. As a result, if it is stopped, there might be a delay in recovery. They cite in support of this argument research published in 1973 that found that treating Shigella with the anti-diarrhea drug (Co-phenotrope, Lomotil) caused people to stay feverish twice as long as those not so treated. The researchers indeed themselves observed that: "Lomotil may be contraindicated in shigellosis. Diarrhea may represent a defense mechanism". COUNT 3
QSN1 What did Nesse and Williams learn? ANS1 diarrhea may function as an evolved expulsion defense mechanism QSN2 If diarrhea is stopped, would could happen? ANS2 there might be a delay in recovery. QSN3 What happened with people with Shigella were treated with anti-diarrheal medication? ANS3 caused people to stay feverish twice as long as those not so treated.