MY STUDY OF THE SUBJECT
began with the tip from Mother Logic—that the full extent of the personal responsibility in nutrition is located in the head before the food is swallowed. That is what led me to concentrate on the mouth as the field of our responsibility which had been neglected by Science. Even the Dental Profession as a whole had not at that time "tumbled" to the fact that they were occupied professionally and constantly in a field of "Preventive Medicine" as important as now they find it.
Everybody had supposed that the digestion of food was effected only in the stomach and small intestines. This may be true, in a narrow sense, but it can be arrested and completely stopped by the head. Furthermore, digestion can be as much assisted by favourable head influence as it can be obstructed by unfavourable head treatment.
This being so, as everybody knows, or can easily learn, what follows as a logical sequence?
Here is a physiological eye-opener, as it dawns upon the business physiologist. The obvious inference is that if the head can make digestion easy or stop it altogether, the stomach being a subservient, mechanical, and chemical servant of the head in the matter, we may properly declare that the master-key of digestion is held by the head, and we may safely say that there is Head Digestion.
THE MOUTH AS A DIGESTIVE ORGAN
The logical continuation of the search for the location of responsibility for good or poor digestion leads us to consider the question of "Division of Labour" as apportioned by the Laws of Normality. All the laboratory evidence I have seen confirms my own observations of the past fifteen years that Nature assures good results if we are thoroughly faithful to our head responsibility during the treatment of food up to the point of swallowing. From that time digestion has been rendered so easy by thorough mouth preparation that it may proceed smoothly even if the mental states are not pleasant. Here, too, we discover that easy digestion reacts favourably on the mentality and exerts a calming influence.
Some observers declare that idiots digest their food quite easily. The less mental clarity they possess the better for their metabolism. This does not argue in favour of the absence of mental influence, for the idiot is a sensualist, and in the relief from mental excitement finds enjoyment of taste and the satisfaction of appetite as agreeable as do the animals under similar favourable conditions.
Quite recently, when I was personally under observation by Dr. Professor Zuntz in Berlin, to test the ease of my digestion of food as compared with others who paid less attention to mouth treatment of it, the good professor instructed me to "be as nearly like a little animal as possible, thinking nothing of anything." This isn't as easy for a "live-wire thinking outfit" as for an idiot, or as for an ingenuous little animal having no thought for the morrow, but the business physiologist does not scorn to go anywhere for light on Nature's requirements. One thing is sure, the person who has been faithful to his personal responsibility by starting the process of digestion as Nature demands can relax and enjoy metabolic and mental calm in delightful harmony more easily than one who has gluttony on his conscience and the wages of sinning on his stomach. These wages look big to the swollen greed of cultivated gluttony, but they are as bad as they are big, and the best way to be convinced of this fundamentally important fact is to realise the potency of head digestion for well or ill, and give it a practical trial.
The key to good digestion is in the head, and the sooner mankind comes to realise this important truth the quicker will come the millennium of nutrition normality.