^()(i Proi\ccdings of the Ohio State .lcadcm\ of Scuiicc 



brought to it and the waste taken away. Extreme fatigue is 

 the result. The system becomes clogged temporarily, which 

 a period of rest will relieve by tue blood having time to catch 

 up in its work in carrying away waste and bringing food to 

 the overworked parts. Here is the line between youth and 

 old age. In youth exercise is spontaneous, but as people in- 

 crease in age the}- must exert a will power to continue to ex- 

 ercise unless their occupation requires it. Unless they force 

 themselves to it the heart and the arteries become weak and 

 flabby from the lack of tone which is brought about by exer- 

 cise and it soon becomes impossible to perform the feats of 

 youth. In fact they lose all interest or desire to take part in 

 any of the plays or spontaneous exercises of youth. Many 

 a man has found that when he was called upon for a little 

 more force than the ordinary, either through disease or in an 

 emergency, he is found wanting and succumbs. It is well 

 known that a man with a strong vigorous heart in pneumonia, 

 other things being equal, will have the best chance for recov- 

 ery. In fact the large percentage of deaths from pneumonia 

 are from this very fact, heart failure, when if the patient had 

 taken good regular exercise during health his heart would 

 Iiave been in shape to have brouglit him through. A man 

 niav become old while he is young in years. It all depends 

 ujion the circulation of the blood and the metabolism. That 

 is upon which side is the balance. By tone as referred to 

 nbo\'e is meant the power to resist disease or to cope with an 

 evtra call if the t^me ever comes when the demand is made. 

 The main business of life is t<) keep this tone as high and for 

 as long a time as i')ossible; i. e. to push our youth as far into 

 life as possible. People as they advance in age resort to- all 

 means possible to avoid muscular activity and often deceive 

 themselves in thinking that fresh air is a substitute for exer- 

 cise. Often a horse and carriage with a hired driver is a great 

 misfortune, for riding gives tlie minimum muscular activity. 

 People whose occupation requires exercise indoors receive 

 great benefit in out door air even if there is no great amount 



