2/0 ELEMENTS OF PHYSIOLOGY 



crazed with pain and with the poisons formed in their 

 bodies during illness. But the delirious mania often uses up 

 the little energy left and costs people their lives. 



486. The Meaning of Fatigue, the Blues, etc. Suppose 

 you are tired or worked down. The fatigue depresses you, 

 and you feel discouraged. What ought you to do ? Why, 

 rest, of course, and you will soon feel all right again. 

 This seems very simple, yet some people will not do this 

 way, but take an alcoholic beverage or tobacco, which 

 will keep them from feeling tired when they are tired. 

 If you have been working hard preparing for examinations, 

 or gathering hay, or in attending to some important busi- 

 ness, or have been under the excitement of some pleasure 

 trip, and feel blue and worn out, then bear the result like 

 a man, or like a true boy or girl, as the case may be. 

 Giving up for a while, or " toughing it out " with the blues, 

 or losing a little time from business, will not hurt you but 

 will make you strong, while a stimulant will leave you less 

 of a man than before. 



487. There is only one source of energy for man's body, 

 and that is the union of food and oxygen. He must get 

 his energy from the same source that the engine does, and 

 that is from his food, which serves as fuel, and the oxygen 

 that burns it. The millions of little workers, the cells, will 

 store up food within themselves and get rid of the ashes 

 and refuse, and the pure, sound body will be ready for 

 work again. 



488. Alcohol is a Whip or a Spur. It is to get strength 

 out of a man, not to put it in. When a person feels 

 that he is all tired out and his nerves are weak, and 

 takes a stimulant, it is the same as if, when his horse shows 

 signs of breaking down, he should lash him with a keen 

 whip, or pierce him with a sharp spur, instead of letting 

 him rest. Many a fine horse under the sting of the whip 

 has been spoiled in a few hours, and many a man has been 



