"On another occasion Bickel and Sasaki started gastric secretion in the dog by sham feeding, and when the flow of gastric juice had reached a certain height the dog was infuriated for five minutes by the presence of the cat. During the next fifteen minutes there appeared only a few drops of a very mucous secretion. Evidently in this instance a physiological process, started as an accompaniment of a psychic state quietly pleasurable in character, was almost entirely stopped by another psychic state violent in character. "It is noteworthy that in both the positive and negative results of the emotional excitement illustrated in Bickel and Sasaki’s dog the effects persisted long after the removal of the exciting condition. This fact Bickel was able to confirm in a girl with œsophageal and gastric fistulas; the gastric secretion long outlasted the period of eating, although no food entered the stomach. The importance of these observations to personal economics is too obvious to require elaboration. “Not only are the secretory activities of the stomach unfavorably affected by strong emotions; the movements of the stomach as well, and, indeed, the movements of almost the entire alimentary canal, are wholly stopped during excitement.”[205] So you see that the proverb, “Better a dinner of herbs where love is than a stalled ox and hatred therewith,” has a physiological as well as a moral basis. Nearly any sensory or psychical stimulus can be artificially made to excite the _secretion of saliva_ as determined by experimentation on animals by Pawlow. It is probable that all the _ductless glands_ (thyroid, suprarenal, etc.), are likewise under the influence of the emotions. The suprarenal glands secrete a substance which in almost infinitesimal doses has a powerful effect upon the heart and blood vessels, increasing the force of the former and contracting the peripheral arterioles. The recent observations of Cannon and de la Paz have demonstrated in the cat that under the influence of fear or anger an increase of this substance is poured into the circulation.[206] Cannon, Shohl and Wright have also demonstrated that the glycosuria which was known to occur in animals experimented upon in the laboratory is due (in cats) to the influence of the emotions, very probably discharging through the sympathetic system on the adrenal glands and increasing their secretion.[207] The glycosuria is undoubtedly due to an increase of sugar in the blood. It is interesting to note, in this connection, that there is considerable clinical evidence that indicates that some cases of diabetes and glycosuria have an emotional origin. The same is true of disease of the thyroid gland (exophthalmic goiter).