no HORSE-BACK RIDING. 



thus entailing a long chain of diseases ; or the lack 

 of exercise may be during adult life. In this case 

 the inherent force or vitality of the individual may 

 for a long time overcome all injurious influences, 

 but sooner or later we see morbid phenomena show 

 themselves, without being able to trace out their 

 cause, or state the exact time at which they began. 



One of the natural results of exercise, and one 

 whose influence is of not less importance than the 

 physical improvement, is that the regular and per- 

 sistent application of the will to the overcoming of 

 the want of energy and bodily laziness gives the 

 moral and mental control of the physical nature, and 

 leads, therefore, to an increase of the force of will and 

 action in general, to greater firmness of character and 

 strength to bear the adversities of life, and develops a 

 persevering power of resistance against that tendency 

 to yield to disease which so often in chronic cases is 

 a worse enemy than the disease itself. 



Exercise maintains not alone the bodily health, but 

 also strengthens and invigorates the mind. "All the 

 forces of the soul are increased and revivified by ex- 

 ercise," says Galen, and ** native heat is maintained 

 within the limits of health by moderate exercise of 

 the body and mind.'* 



In every situation of life, in health or disease, the 

 physical is always more or less influenced by the 

 mental condition, and vice versa. Who has not en- 

 joyed that feeling of thorough well-being on occa- 



