Hygiene for Young People Adapted to Intermediate Classes And Common Schools
Hygiene for Young People Adapted to Intermediate Classes And Common Schools
Edward Jarvis
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Thus we see that good studying, preach- VENTILATION OF BUILDINGS. 121 ing, and teaching, as well as good health, are dependent on good air. Special care should be taken in the ven- tilation of sleeping-rooms. Leave a close room in which you have spent the night, for a brisk walk in the open air then return to it again. The air is foul with the heavy, suffocating odor of waste matter, the product of your lungs, which you have been breathing over and over again during your sleeping hours. You fel...t stupid and tired on waking, because poisoned by your own breath. Sleeping-rooms should be so ventilated in the winter, as well as in the summer, that the sleeper may have a constant supply of moderately warm, fresh air. This can be done by raising the lower and dropping the upper sash of a window in a warm room. Cold air is not necessarily pure air, and, in northern climates, is often too severe in win- ter to be breathed at night by any but the most robust. Two openings are needed in order to ven- tilate a room properly one through which 122 RESPIRATION.
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