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主题 : as much pure air as is

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as much pure air as is

as much pure air as is
?breathed by the inmates of these houses. Of course, the more persons are in one room or one house, the greater necessity of increased ventilation. . The introduction of warm air at the bottom of a room, and the construction of properly-placed ventilators for the escape of this Coach Factory Store air out of the room, is a sure mode of supplying a room with pure air. But uailess great care is taken, the air thus heated will be too dry and too warm. Open fire-places, that make a constant draught of the air of a room upward and outward, insure a constant supply of fresh air from the doors and windows. But close stoves, wCoach Factory Outlet online ith tight doors and windows, make iCoach Diaper Bag Outlet t almost certain that the inmates of a room will constantly breathe impure air, which will act as a slow poison in undermining the constitution. And when the constitution is thus weakened diseases of all sorts find ready entrance. These remarks illustrate this law of health for the lungs: Every pair of lungs should have a supply of puCoach Outlet the muscles of the abdomen. Of course, any tight clothing around the ribs prevents their action in breathing; and tight dressing around the lower part of the body serves also to lessen the abdominal breathing. All such compressions make it certain that a portion of the air-cells of the lungs will never receive any air. In consequence of this the bCoach Factory Outlet lood will not be properly supplied with oxygen, Coach Outlet Online and the constitution is gradually weakened. This illustrates the importance of the next law of health: The body should never be so constrained by the dress as to impede, in the least degree, the movement of the ribs or abdominal muscles in breathing. It has been shown how the body may be so altered in form as to become permanently crooked, and the shoulders rounded. Both these distortions diminish the space allowed to the lungs. A person with bent back must have the lungs, stomach, and abdomen pressed together in front so as to diminish the capacity for a full inflation; while round shoulders make a flat and narrow chest, and give little space for the lungs. This shows the importance of the next law of health for the lungs: The habitual positions of the body in walking, sitting, and sleeping should be such as to give full expansion to the lungs in breathing. It is probable that there is no law of health so universally violated by all classes of persons as the one which demands that every pair of lungs should have fresh air at the rate of a hogshead an hour. If all the poisonous matter that pours from nose and mouth, and exhales from the skin, were colored, so as to be visible, and we should see a black or blue vapor accumulating around us as fast as the air of a room was vitiated, there would be an instant change in the feeling and conduct of manki.

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