File:The essentials of health. A text-book of anatomy, physiology, hygiene, alcohol, and narcotics (1892) (14779483485).jpg

Identifier: essentialsofhea00stow (find matches)
Title: The essentials of health. A text-book of anatomy, physiology, hygiene, alcohol, and narcotics
Year: 1892 (1890s)
Authors: Stowell, Charles H(enry), 1850- (from old catalog)
Subjects: Physiology
Publisher: New York, Boston (etc.) Silver, Burdett & company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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d to fat, as repre-sented in Fig. 79. Disuse of the fibers had causedthem to undergo a fatty degeneration. From this andother facts, we conclude that exercise of the muscles 192 THE ESSENTIALS OF HEALTH. is absolutely necessary to keep them healthy and strong. But no one admires a man who is all muscle, and whohas no brain; so we conclude thatit is unwise to develop one par-ticular part of the body and toneglect some other portion. Theendeavor should be to develop allparts equally well. A properamount of exercise is one of theessential conditions for the accom-plishment of this end. Many a young and enthusiasticscholar has been so carried awaywith his desire for mental advance-ment that every hour spent in otherlabor, or in rest, was regarded asso much time wasted. He failed toremember that the sound mind mustbe in a sound body to bring forth itshighest and best results. It is tothis class of devoted workers that weearnestly appeal. To all such wesay, it is of vital importance that at
Text Appearing After Image:
Fig. 79. Two muscu-lar fibers undergoing afatty change, magnified.The fiber to the left hasa number of fat globulesgathered near the nuclei.The changes in the fiberto the right are more ad-vanced : the transverselines have nearly disap-peared ; the nuclei arescarcely visible ; and the whole muscle substance is nearly all changed to least one or two hours of eacli dayfat- be spent in outdoor exercise. General Exercise. Exercise should be taken out ofdoors as much as is possible, since pure air is of thegreatest importance. No matter how cold the air maybe outside, no one need fear taking cold if the body bekept in active exercise while exposed, and if rest betaken in the warm house. EXERCISE. 193 General exercise should not be too violent; over-ex-ercise is nearly as bad as no exercise. Any exerciseis too violent which leaves the body all tired out.Such exercise unfits the body for regular work, andmay prove injurious to the nervous system. Healthfulexercise should bring a restful feel

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