HOW IS THE HUMAN MACHINE PROTECTED? 367 



Hot baths should only be taken at night, as they tend to 

 bring blood to the skin and increase the radiation from 

 the body, thus making the chances of taking cold greater. 

 But hot baths take the blood away from the brain, thus 

 helping anyone who is wide awake to get to sleep more 

 easily. The best bath is the shower, for this stimulates 

 the outside skin, helping to make it resistant against colds. 

 When we chill the body, the body resistance is lowered 

 and germs, which are almost always present in our 

 mouths and throats, develop rapidly and cause a cold. 



Habits of Cleanliness. " Cleanliness is next to god- 

 liness " is an old saying, and a good one. Habits of clean- 

 liness at meals are particularly necessary. One should 

 always wash the hands after going to the toilet. Bathing 

 the entire body at least once a week should be a habit, and 

 if the feet or body become covered with perspiration in 

 warm weather, one should bathe every day. 



SELF-TESTING EXERCISE 



Select from the following list those words which best fill the blank spaces 

 in the sentences below and arrange the words in proper numerical order. 

 A word may be used more than once. 



raise dead oil ridges 



hairs sight protected temperature 



depressions different pores identification 



touch nerves hearing blood vessels 



alike prints bones cells 



sweat alive regulate arteries 



The human machine is (1) by the skin. It has two layers, 



the inner of which is (2) It is supplied with (3) and 



(4) It gives us sensations of (5) , (6) , and pressure. 



Nails and (7) grow from the inner skin. The skin has millions 



of (8) , which are openings of (9) glands. The skin in 



giving off perspiration helps to (10) our body temperature. 



Due to the fact that the skin is thrown into (11) and (12) 



and that the skin of every person is slightly (13) from that of 



every other person, (14) are made of the finger tips and are 



used for purposes of (15) 



