Anxiety and eating spicy food can lead to ......... in a normal person.

Why do the eyes of patients turn yellow during jaundice?

Which one of the following is $NOT$ a cause of diarrhea?

The abnormal frequent movement of the bowel and increased liquidity of the faeces is called:

$A$ : In acute constipation,purgatives containing magnesium salts are generally used.
$R$ : The osmotic effect of $Mg^{2+}$ in the intestinal lumen prevents water reabsorption from the intestine. $Mg^{2+}$ increases the solute concentration in the intestinal lumen because $Mg^{2+}$ is absorbed very slowly.

Lactose intolerance in adults is related to