Investigators are much divided on the question of whether worry causes superacidity, or superacidity causes worry. The experience of the writer in treating several thousand cases of stomach acidity has proved beyond a doubt that acid fermentation and stomach irritation are the primary causes, and what is commonly called "worry" is merely a symptom or result of this condition. It is quite evident, therefore, that all forms of nervousness must go back to the food question for final solution. NERVOUS INDIGESTION--THE REMEDY Nervous indigestion should be treated as follows: 1 The patient should employ his time in pleasant but useful occupation 2 As to diet, _omit_ the following: All red meats Acid fruits Bread and cereals Condiments Pickles {Such as-- {Candies Sweets {Cane or maple-sugar {Dates and figs {Desserts and pastries of all kinds {Sirups 3 The diet should consist of-- An abundance of green salads Baked potatoes (Including the skins) Egg whites Fats--limited quantity-- Such as-- Dairy butter Nut butter Olive-oil Nuts Fresh vegetables--not canned {Beans Legumes {Peas {Lentils In cases of Nervous Indigestion: OMIT EAT Acid fruits Baked potatoes Bread and cereals Fats (limited quantity) Coffee and tea Fresh vegetables Condiments Green salads Desserts and pastries Legumes Pickles Limited quantity of milk (preferably Red meats sour) Stimulants of all kinds White of eggs Sweets Tobacco The experience of the writer for many years has been that the _fewer the articles composing the diet, the better the progress could be made in treating nervous indigestion. In many instances, the mono-diet system (eating only one kind of food at a meal) has been adopted with excellent results_. SUBACIDITY Indigestion is a term used to describe the condition caused by food remaining in the stomach _over_ Nature's time-limit. In such cases there is usually a lack of hydrochloric acid. This disorder is sometimes called hyperchlorhydria. The expression of indigestion, which is a lack of acid, and the expression superacidity or hyperchlorhydria, which is too much acid, are often confusing, inasmuch as both conditions cause a feeling of heaviness or a lump in the stomach. (See "Superacidity," p. 419.) SUBACIDITY--THE CAUSE The most prolific cause of subacidity is sedentary habits or lack of activity. This is especially true of young people, while in adults, or those who have passed forty, the usual cause is incorrect eating, or an unbalanced diet.