Occasionally a man becomes what is termed "blown-up with water;" that is, the perspiration ceases, the man becomes utterly helpless, has to be carried out, and is disabled until the sweating process is restored by vigorously applied friction.

There is little deleterious change noticed in these men; in fact, they are rarely invalids.
Hydroadipsia is a lack of thirst or absence of the normal desire for water.

In some of these cases there is a central lesion which accounts for the symptoms.

McElroy, among other cases, speaks of one in a patient who was continually dull and listless, eating little, and complaining of much pain after the least food.

This, too, will be mentioned under abstinence.
Perverted appetites are of great variety and present many interesting as well as disgusting examples of anomalies.