CONTENTS.
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CHAPTER I.
  PAGE
On the Appearance of Symptoms of Old Age in Young Persons 1
CHAPTER II.
On the Agencies which Govern our External Appearance and the Nutrition of the Tissues 11
CHAPTER III.
On the Agencies which Govern Immunity Against Infections and Intoxications—The Origin of Fever 21
CHAPTER IV.
On the Agencies that Govern the Condition of the Nervous System and Mentality 35
CHAPTER V.
On the Influence of the Sexual Glands upon Vitality and Long Life 45
CHAPTER VI.
On Heredity and Longevity 55
CHAPTER VII.
On Means which can Help us to Determine the Probable Duration of Life 64
CHAPTER VIII.
On the Causation of Old Age 90
CHAPTER IX.
The Rational Prevention of Premature Old Age and the Treatment of Old Age 114
CHAPTER X.
The Destruction and Elimination of Toxic Products from the Body and Hygienic Measures for the Improvement of these Functions 134
CHAPTER XI.
On the Destruction of Poisonous Products Through the Thyroid and Parathyroid Glands 138
CHAPTER XII.
Hygiene of the Thyroid Gland 145
CHAPTER XIII.
The Destruction of Toxic Products by the Liver and the Improvement of its Protective Functions 149
CHAPTER XIV.
The Hygiene of the Liver 155
CHAPTER XV.
On the Destruction of Toxic Products by the Adrenals 159
CHAPTER XVI.
Hygiene of the Adrenals and of the Circulatory System—A Few Remarks on the Cause, Prevention, and Treatment of Arteriosclerosis 164
CHAPTER XVII.
The Elimination of Toxic Products Through the Intestines and the Improvement of This Function 170
CHAPTER XVIII.
On the Prevention and Treatment of Habitual Constipation 175
CHAPTER XIX.
Hygiene of the Intestines 182
CHAPTER XX.
Hygiene of the Intestines—A Few Remarks on the Cause and Prevention of Appendicitis 192
CHAPTER XXI.
On the Elimination of Toxic Products Through the Kidneys 197
CHAPTER XXII.
Hygiene of the Kidneys, and the Prevention of Renal Disease 203
CHAPTER XXIII.
On the Elimination of Toxic Products Through the Skin 209
CHAPTER XXIV.
The Hygiene of the Skin—Air Baths 215
CHAPTER XXV.
On Rational Clothing 219
CHAPTER XXVI.
Improved Hygiene of the Skin and Kidneys through Bathing—Foot-baths 231
CHAPTER XXVII.
Hygiene of the Skin and Kidneys by Means of Perspiration 237
CHAPTER XXVIII.
On Exercise, Swedish Gymnastics—Massage—Sport, and Walking and Running Exercise 244
CHAPTER XXIX.
A Few Remarks on Cold Feet—Their Cause and Treatment 252
CHAPTER XXX.
On the Benefits of Sunlight 255
CHAPTER XXXI.
On the Advantages of an Open Air Life and of Breathing Exercises 262
CHAPTER XXXII.
On the Dangers of Living in Confined and Ill-Ventilated Quarters 271
CHAPTER XXXIII.
Hygiene of Artificial Heating—the Dangers of Heat by Steam and a Few Hints about their Prevention 275
CHAPTER XXXIV.
Food Hygiene—General Remarks 280
CHAPTER XXXV.
On Proteid Food, Animal Food, Meat, Fish, Eggs, Milk, etc. 294
CHAPTER XXXVI.
On Carbohydrates and Fats, and the Great Advantages of Vegetables and Fruit 301
CHAPTER XXXVII.
On the Advantages and Disadvantages of a Vegetarian Diet 309
CHAPTER XXXVIII.
On the Dangers of a Too Abundant Meat Diet—A Few Hints on the Dietetics of Meat 317
CHAPTER XXXIX.
On the Great Advantages of Much Milk in the Diet for the Prevention and Treatment of Old Age 325
CHAPTER XL.
On Blood as an Article of Food Containing Iron and Animal Extracts—Sausages and Blood Puddings 333
CHAPTER XLI.
Some Remarks on the Hygiene of Eating—How to Obtain an Appetite—On Mastication 339
CHAPTER XLII.
On the Uses of Small Doses, and the Deleterious Action of Large Quantities of Alcohol 347
CHAPTER XLIII.
Some Remarks on the Causes and Prevention of the Alcohol Habit 356
CHAPTER XLIV.
On Other Stimulants—Tea, Coffee, Cocoa, Tobacco: Their Merits and Disadvantages 362
CHAPTER XLV.
On Sleep, and Its Importance in Ridding the Body of Toxic Products 368
CHAPTER XLVI.
On the Causation of Sleep, Sleepiness, and Insomnia 372
CHAPTER XLVII.
Hygiene of Sleep—Prevention of Insomnia 377
CHAPTER XLVIII.
The Treatment of Sleepiness and Insomnia 383
CHAPTER XLIX.
Hygiene of the Sexual Glands—the Dangers of Sexual Overactivity and of Total Sexual Abstinence 389
CHAPTER L.
On Married Life as an Important Means for Prolonging Life 400
CHAPTER LI.
Hygiene of the Mind—Emotions and Worry as Causes of Old Age 404
CHAPTER LII.
Hygiene of the Mind—Religious Belief as a Means of Prolonging Life 414
CHAPTER LIII.
Disease Considered as a Self-defence of Nature 419
CHAPTER LIV.
Hygiene of the Mind—Advice to Brain Workers 423
CHAPTER LV.
On the Prevention of Premature Old Age, and the Treatment of Old Age, through Certain Drugs: Arsenic, Iron, and Iodides 426
CHAPTER LVI.
On the Prevention of Premature Old Age and on the Treatment of Old Age by Animal Extracts 434
CHAPTER LVII.
A Few Hints on Youthful Appearance 449
CHAPTER LVIII.
The “Twelve Commandments” for the Preservation of Youth, and the Attainment of a Green Old Age 455
 
Glossary 459
 
Index 467
 
Footnotes 494