There is one further point to be noted. Food should not be eaten when under the influence of strong emotion. It is true that under such conditions there probably would be no appetite, but when we are so accustomed to consulting the clock that there is danger of cozening ourselves into the belief that we have an appetite when we have not, and so force ourselves to eat when it may be unwise to do so. Strong emotions, as anger, fear, worry, grief, judging by analogy, doubtless inhibit digestive activity. W. B. Cannon, M.D., speaking of experiments on cats, says: 'The stomach movements are inhibited whenever the cat shows signs of anxiety, rage, or distress.' To thoroughly enjoy one's food, it is necessary to have hunger for it, and if we only eat when we feel hungry, there is little likelihood of ever suffering from dyspepsia.
In passing, it is appropriate to point out that as when food is better enjoyed it is better digested, therefore art, environment, mental disposition, indirectly affect the digestive processes. We should, therefore, remembering that simplicity, not complexity, is the essence of beauty, ornament our food and table, and be as cheerful, sociable, and even as merry as possible.
IV
HOW TO EAT
The importance of thorough mastication and insalivation cannot be overestimated. The mouth is a part of the digestive apparatus, and in it food is not only broken down, but is chemically changed by the action of the saliva. If buccal (mouth) digestion be neglected, the consequence is that the food passes into the stomach in a condition that renders it difficult for that organ to digest it and any of a great number of disturbances may result.
Mastication means a thorough breaking up of the food into the smallest particles, and insalivation means the mixing of the small particles with the saliva. The mechanical work is done with the jaws and tongue, and the chemical work is performed by the saliva. When the mechanical work is done thoroughly the chemical work is also thorough, and the test for thoroughness is loss of taste. Masticate the food until all taste has disappeared, and then it will be found that the swallowing reflex unconsciously absorbs the food, conscious swallowing, or at least, an effort to swallow, not being called for.
It may take some while to get into the habit of thorough mastication after having been accustomed to bolting food, but with a conscious effort at the first, the habit is formed, and then the effort is no longer a laborious exercise, but becomes perfectly natural and is performed unconsciously.
This ought to be common knowledge. That such a subject is not considered a necessary part of education is indeed lamentable, for the crass ignorance that everywhere abounds upon the subject of nutrition and diet is largely the cause of the frightful disease and debility so widespread throughout the land, and, as a secondary evil of an enormous waste of labour in the production and distribution of unneeded food. Were everyone to live according to Nature, hygienically and modestly, health, and all the happiness that comes with it, would become a national asset, and as a result of the decreased consumption of food, more time would be available for education, and the pursuit of all those arts which make for the enlightenment and progress of humanity.
To become a convert to this new order, adopting non-animal food and hygienic living, is not synonymous with monastical asceticism, as some imagine. Meat eaters when first confronted with vegetarianism often imagine their dietary is going to be restricted to a monotonous round of carrots, turnips, cabbages, and the like; and if their ignorance prevents them from arguing that it is impossible to maintain health and strength on such foods, then it is very often objected that carrots and cabbages are not liked, or would not be cared for all the time. The best way to answer this objection is to cite a few plain facts. From a catalogue of a firm supplying vegetarian specialties, (and there are now quite a number of such firms), most of the following information is derived: