Abnormalities of appetite involve a considerable variety of peculiarities in food intake. Aversion to food may range in intensity from the ordinary anorexia, or loss of appetite, that is familiar to physicians, to an extreme loathing for food. A recent writer has remarked that bulimia, or increase of appetite, is certainly not abnormal so long as it is a simple demand for increased food, as in convalescence; although it might be described as perverted at the court of the emperor Nero, where decadent diners retired for emesis between courses. The "craving sensation" common in catarrhal gastritis and temporarily relieved by eating, and the similar sensation observed in worm infections in children, we are further reminded, are commonly attributed to irritation of the intestinal tract, without further attempt to relate clinically observed effect with physiologic cause.
Such abnormalities are quite distinct, however, from the well defined perversion of appetite usually referred