i6o 



HUMAN PHYSIOLOGY 



CHAP. 



that do not fit the feet. Shoes may be too large, too 

 small, or uncomfortable for some other reason. The 

 French heel and the long, pointed toe do not fit any 

 foot. Tight bands, as elastic garters or elastic shoe 



tops, interfere with the circula- 

 tion of the blood, causing the 

 veins to enlarge permanently. 

 Tight clothing may seriously 

 impair the health. In this 

 whole matter the one impor- 

 tant caution to heed may be 

 stated in this way : All cloth- 

 ing should permit the utmost 

 freedom of movement to all 

 organs and members of the 

 body and contribute to the 

 fullest extent to our physical comfort. 



The amount of clothing should be ample to keep the 

 body in a comfortable condition, but not tend to cause 

 free perspiration. There is danger in wearing more 

 clothing in cold weather than is really necessary, be- 

 cause any part of the body constantly overheated 

 becomes tender and highly sensitive to the slightest 

 ordinary changes in temperature. MufHers, tippets, or 

 fur collars worn about the neck are the cause of many a 

 sore throat and cold. The parts of the body that require 

 most clothing are the stomach and chest, the back and 

 shoulders. More clothing is necessary in the evening 

 than during the day, for the system liberates less heat at 

 night. Damp and wet garments are dangerous because 



FIG. 81. Showing, in A, a foot 

 distorted by tight shoes, and, 

 in B t a natural foot (Zuppke). 



