HORSE-BACK RIDING. 109 



Sometimes haemoptysis has been produced by rid- 

 ing rapidly against a strong wind. There must have 

 existed a morbid predisposition of the system. 



Many authors, as Ramazzini, Cabanis, Loude, etc., 

 state that an excessive indulgence in horse-back 

 exercise produces aneurism of the aorta, and it is gen- 

 erally acknowledged that horse-back riding is a very 

 frequent cause of hernia. The continued pressure 

 upon the intestines made by the diaphragm and 

 intestinal walls, draws back the parts which form the 

 ring, and this continuous pulling will in time so far 

 relax it as to render a hernia a very possible effect. 



Urethritis is said to have been caused by riding ; 

 as it would be benign, rest for a short time would 

 prove the remedy. 



Horse-back riding is of course contralndlcated in 

 diseases of the urinary organs and in sufferers from 

 hemorrhoids. The results of inquiries lead me to 

 conclude that hemorrhoids only are developed from 

 horse-back riding in those who make this exercise a 

 profession. 



If we examine carefully as to the health of those 

 leading a sedentary life, we will find that a greater 

 portion of the affections to which they are subject 

 results generally from lack of proper exercise in youth, 

 thus preventing complete physical development, both 

 as regards the form of the body and the functions of 

 its organs. The impoverishment of the blood may 

 be so complete as to destroy life, or only partial, and 



