INTRODUCTION 3 



Relation of Anatomy and Physiology to the Study of 

 Hygiene. If the chief object in studying the body is that 

 of learning how to manage or care for it, and hygiene 

 supplies this information, why must we also study anatomy 

 and physiology ? The answer to this question has already 

 been in part suggested. In order to determine what 

 things and conditions are in harmony with the plan of the 

 body, we must know what that plan 'is. This knowledge is 

 obtained through a study of anatomy and physiology. 

 The knowledge gained through these subjects also renders 

 the study of hygiene more interesting and valuable. One 

 is enabled to see why and hoiv obedience to hygienic laws 

 benefits, and disobedience to them injures, the body. 

 This causes the teachings of hygiene to be taken more 

 seriously and renders them more practical. In short, 

 anatomy and physiology supply a necessary basis for the 

 study of hygiene. 



Advantages of Properly Managing the Body. One 

 result following the mismanagement of the body is loss of 

 health. But attending the loss of health are other results 

 which are equally serious and far-reaching. Without good 

 health, people fail to accomplish their aims and ambitions 

 in life; they miss the joy of living; they lose their ability 

 to work and become burdens on their friends or society. 

 The proper management of the body means health, and it 

 also means the capacity for work and for enjoyment. Not 

 only should one seek to preserve his health from day to 

 day, but he should so manage his body as to use his 

 powers to the best advantage and prolong as far as possi- 

 ble the period during which he may be a capable and 

 useful citizen. 



