Above all, it is important that the anxious solicitude which a great many people have and foster sedulously with regard to the effect of even slight disturbances of intestinal functions should be overcome. We have discussed this question in the chapter on dreads and need only say here that the delay of a few hours in the evacuation of the bowels or even the missing entirely of an intestinal movement for a full day occasionally, will {226} usually not disturb the general health to any notable extent, and that the symptoms so often attributed to these slight disturbances of intestinal function are much more due to the solicitude about them than to any physical effect. There are a great many people whose intestinal functions are quite sluggish and whose movements occur only every second day or so, who are in perfectly good health and strength and have no symptoms attributable to any absorption of supposed toxic materials from the intestines. Indeed, in recent years, the idea of intestinal auto-toxemia has lost more and more in popularity for it has come to be recognized that the symptoms attributed to this condition are due in a number of cases to serious organic disease in other parts of the body, and in a great many cases to functional nervous troubles and to the psycho-neuroses, especially the oversolicitude with regard to the intestines. The will is needed then for intestinal function to regulate the diet, to increase the quantity of fluid, to secure regular habits and to eliminate worry and anxiety which interferes with intestinal peristalsis. There are but very few cases that will not yield to this discipline of the will when properly and persistently tried. {227} CHAPTER XVI THE WILL AND THE HEART "For what I will, I will, and there an end." _Two Gentlemen of Verona_. The heart is the _primum movens_, the first tissue of the body that moves of itself in the animal organism, doing so rhythmically and of course continuously before the nervous system develops in the embryo. This spontaneous activity would seem to place it quite beyond the control of the will, as of course it is, so far as the continuance of its essential activity goes, but there is probably no organ that is so much influenced by the emotions and comes indirectly under the influence of the will as the heart. There are a series of expressions in practically all languages which chronicle this fact. We talk about the encouragement and discouragement or in Saxon terms that are exactly equivalent to the French words, heartening and disheartening of the individual. At moments of panic the {228} heart can be felt to be depressed, while at times when resolve is high there is a sense of well-being in connection with the firm action of the heart that flows over into the organism and makes everything seem easy of accomplishment.