“I noticed that if these dogs got disgruntled, or tired, or dissatisfied, then the gastric juice would cease to flow. Sometimes the food, having been chewed a very long time, lost its flavor, and the dogs secreted no more juice; then the attendant would come along and put a little fresh food into the plate and the dogs would seize this with great avidity, and the gastric juice would begin to flow again in a perfect stream.
“These experiments have demonstrated in the most positive manner the definite connection there is between psychic conditions and the process of digestion, and have shown us that the food must be palatable, that it must address the olfactory sense agreeably, and that the mind must be in a happy state in order that the digestive process may proceed.”
And then Dr. Kellogg goes on to tell of the work of Professor Cannon, of Harvard University, who actually has made visible the digestive processes in the stomach by means of the X-ray. By feeding cats food colored with certain substances which are impervious to the X-rays, he was enabled to photograph all the actual movements of the organs concerned in the acts of digestion. It was demonstrated that certain emotions, such as anger and fear, positively stopped the whole process of digestion.
Depressing thought will affect injuriously the circulation of the blood; it will also affect the breathing. The mere attitude of the body assumed by the despondent person has its bad influence. The head droops in a melancholy fashion—and this very attitude prevents normal action of the lungs and the blood veins. Depressing thoughts destroy the appetite; and when the body does not receive its proper nourishment, the blood becomes impoverished.
“Any severe anger or grief is almost certain to be succeeded by fever in certain parts of Africa,” says Sir Samuel Baker, in the British and Foreign Medico Chirurgical Review. “In many cases, I have seen reasons for believing that cancer had its origin in prolonged anxiety,” says Sir George Paget, in his “Lectures.” “The vast majority of the cases of cancer, especially of breast or uterine cancer, are probably due to mental anxiety,” says Dr. Snow, in the London Lancet. “Diabetes from a sudden mental shock is a true, pure type of physical malady of mental origin,” says Sir B. W. Richardson in “Discourses.” “I have been surprised how often patients with primary cancer of the liver lay the cause of this ill health to protracted grief or anxiety. The cases have been far too numerous to be accounted for as mere coincidences,” says Murchison.
“Eruptions on the skin will follow excessive mental strain. In all these and in cancer, epilepsy and mania from mental causes there is a predisposition. It is remarkable how little the question of physical disease from mental influence has been studied,” says Sir B. W. Richardson.
“My experiments show that irascible, malevolent and depressing emotions generate in the system injurious compounds, some of which are extremely poisonous; also that agreeable, happy emotions generate chemical compounds of nutritious value, which stimulate the cells to manufacture energy,” says Elmer Gates, the celebrated American scientist. Gates’ experiments show with minute exactitude just how it is that one’s impalpable thoughts and emotions affect the battle of the blood, and his work makes it easier for one to understand and appreciate the portion of truth underlying such manifestations as the New Thought and Christian Science movement. There can be no doubt that men and women have practically remolded their bodies and changed the whole course of their lives by using the impalpable yet potent force of their wills. Sometimes these have been men and women seemingly without a vestige of will; and yet, by comprehending the necessity for will, they took the first steps towards attaining possession of it. Many very remarkable stories could be told illustrating this point. Professor William James, of Harvard, introduced one of the writers to a man who had been afflicted with what had seemed a helpless case of mental trouble, accompanied by physical ailments which were rapidly breaking him down; and this man had affected a complete cure through his own unaided efforts. He resolved that he could be cured, and cured he was.
We remember another instance; this time of a consumptive; a man who was so far gone that all the physicians gave up his case as hopeless. To all intents and purposes he was already a dead man, when there came to him the light of a new hope. He had spent a great deal of money in taking various “treatments” for tuberculosis, without deriving permanent benefit, and then had come to believe utterly that in only one way was there hope for the consumptive, namely, by living entirely in the open air. When seemingly at his last gasp he arrived at a branch of the Battle Creek Sanitarium at Boulder Creek, Colorado. In certain photographs of this establishment you may see on a bare hillside that stands back of the building, a narrow foot-path. This path has many turnings and windings in its lower course, but towards the top of the hill it aspires upward in a straight line. That trail was made by the consumptive who had determined that he would live, crawling on his hands and knees up the side of the hill. He positively refused to go under a roof for any consideration whatsoever. His meals were brought to him where he lay on the road side. At first he was so weak that he could only go a few feet in the course of a day, and had to drag himself along in a wavering line. But he began to improve—he went on improving—until, finally, along the track on which he had crawled he was running at top speed.
And a little while ago this man was one of the athletes who took part in Professor Irving Fisher’s endurance competition between flesh-eating athletes and vegetarians; and he proved to be best of them all! He doubled the best record made by any Yale man in the deep-knee bending contest. The most enduring Yale man was able to make the deep-knee bend—which is a very severe test of physical endurance—twelve hundred times. The consumptive who had cured himself went twenty-four hundred times. He thinks nothing of a ten or fifteen mile ran before breakfast in the morning.
It is important to apply these truths to the question of nutrition. It is positively harmful to eat food when one is gloomy or low spirited or worried or angry.