THE NERVOUS SYSTEM 247 



that are so freely made and sold for the purpose of compelling 

 sleep. 



81. Results of the Use of Narcotics. The use of any of 



these narcotics, without proper medical advice, is their abuse. 

 In this way they become powerful for harm. They are no 

 longer remedies, but poisons. Self-prescribed, they have a 

 thousand times been the instrument of unintentional suicide. 

 (Read Note 22.) 



22. The Narcotics and Digestion. "The habitual use of opium and 

 other narcotic drugs is unfriendly to digestion, leading to nausea and a 

 distaste for wholesome food. The vigor of the organs of digestion is 

 impaired. 



" The disturbing effects of tobacco, in producing nausea and vomiting, 

 is well known, and is almost the invariable experience of all beginners in 

 the use of that substance ; loss of appetite is a very frequent result of 

 the habitual use of it." 



81. What the results of the use of narcotics ? 



