How to keep well : a text-book of health for use in the lower grades of schools with special reference to the effects of alcholic drinks, tobacco and other narcotics on the bodily life . of that name. According to onestory, Achilles received his death-wound in the heel, noother part of his body being liable to injury. 23. Why we need Exercise. — Every part of ourbodies ought to be used if we wish to be vigorous andhealthy. You know what stout,strong arms a blacksmith has:that is because he uses themso much. Constant use, insteadof wearing them out, as it wouldif they were tools, does themgood.
How to keep well : a text-book of health for use in the lower grades of schools with special reference to the effects of alcholic drinks, tobacco and other narcotics on the bodily life . of that name. According to onestory, Achilles received his death-wound in the heel, noother part of his body being liable to injury. 23. Why we need Exercise. — Every part of ourbodies ought to be used if we wish to be vigorous andhealthy. You know what stout,strong arms a blacksmith has:that is because he uses themso much. Constant use, insteadof wearing them out, as it wouldif they were tools, does themgood. It is just the same with otherparts. A person who uses hiseyes as he ought has good eye-sight, and sees many thingsanother person cannot see. Aperson who uses his ears as hecomes in time to hearmany things another persondoes not hear. We are toldthat savages, who are alwayst. — Bones of Leg and Foot looking and listening with all and Muscles of Calf. ^^ ^^ ^^ ^ QnQm[QS or game, have parts of their eyes actually larger thanours, just as a blacksmiths arms grow larger by con-stant use. Any part of our body that we do not use finallybecomes weak and helpless. Let the blacksmith. INSERTION OP OU^htCALF tlUSCLEJ & TOES Fig. 2 THE MUSCLES 39 change his work for that of a clerk, and the oncebrawny arms become smaller and weaker. We read ofcertain people in India who, as an act of worship, keepone arm raised above the head until the musclesshrivel and become useless. All the parts of the body have so much to do witheach other that each one has some effect on all theothers. Now, what we commonly call taking exercise— that is, walking, running, and jumping — not onlystrengthens our arms and legs and backs, but makesour blood flow faster and more briskly. It makes usbreathe in a great deal more fresh air, it helps us to getrid of more waste matter, it makes us warm and comfort-able, and it keeps our digestive organs in good order. In brief, exercise makes us stronger and better a
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecthygiene, bookyear1901
