. Animal biology; Human biology. Parts II & III of First course in biology. Biology. THE SKIN the skin also can be trained and its powers developed, or it can be allowed to become weak and powerless. Soundness of the skin is as es- sential to health as soundness of any other organ. A rosy color indicates good health because of a well-balanced circulation. Paleness often means internal congestion and great liability to indigestion, colds, etc. Hence we think a rosy skin beautiful and a pale skin ugly. With the skin in a healthy condition, the danger of taking most diseases is removed. Chara
. Animal biology; Human biology. Parts II & III of First course in biology. Biology. THE SKIN the skin also can be trained and its powers developed, or it can be allowed to become weak and powerless. Soundness of the skin is as es- sential to health as soundness of any other organ. A rosy color indicates good health because of a well-balanced circulation. Paleness often means internal congestion and great liability to indigestion, colds, etc. Hence we think a rosy skin beautiful and a pale skin ugly. With the skin in a healthy condition, the danger of taking most diseases is removed. Characteristics of a Vigorous person who readily takes cold, who is fearful of drafts of air at all times, has a weak skin. To one who has a healthy skin drafts are dangerous only when the skin is moist with perspira- tion, and the body is inactive; cold drafts may then do harm. Cold air and cold water are the best means of toughening a tender skin. A batJi is to tJie skin what gymnastic exercises are to the muscles. The muscle fibers in the walls of the blood vessels and .the nerves controlling them need exercise as well as the rest of the body (Fig. 25). Importance of Bathing. -—If we followed tlie out- FIG. 25.—BLOOD VESSELS, with the VASO-MOTOR NERVES which accompany and control them. door life and wore tJie scanty clothing of savage races, tJie rains, the cool air, and the sunlight would keep our skins vigorous and sound. But want of exercise to induce perspiration allows the sweat glands to become stopped up. The wearing of clothes is a very uncleanly custom. Clothes make the skin inactive, yet confine the impurities which the weakened skin may still be able to excrete. Thick and. o. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bailey, L. H. (Liberty Hyde), 1858-1954. New York, The Macmillan
Size: 1518px × 1645px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1910
