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A local tendency to colds is caused by chronic hypertrophies and congestions of the nose and throat, by subacute or chronic catarrhs of these areas. Colds may be produced by any condition of the lungs or heart that may cause congestions of these mucous membranes, and particularly by such a condition of the nose or nasopharynx mucous membranes which will cause mouth breathing more or less constantly. Such patients are more sensitive to acute infections of the throat and lungs than are those who breathe through their nose.
A general tendency to colds is produced by hypersensitivity or decreased resistance of the body to microorganisms and dust particles in the atmosphere.
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A local tendency to colds is caused by _______.
hypersensitivity or decreased resistance of the body to microorganisms and dust particles in the atmosphere
such a condition of the nose or nasopharynx mucous membranes which will cause mouth breathing more or less constantly
any condition of the lungs or heart that may cause congestions of these mucous membranes
chronic hypertrophies and congestions of the nose and throat, by subacute or chronic catarrhs of these areas