Sleep, or, The hygiene of the night / by W.W. Hall.

  • William Whitty Hall
Date:
1870
Catalogue details

Licence: Public Domain Mark

Credit: Sleep, or, The hygiene of the night / by W.W. Hall. Source: Wellcome Collection.

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    the breathing of cold air is healthful only to a certain extent. It is not true that because it is healthful to sleep in a cool room, it is more healthful to sleep in a very cold room, not only because, as has been pre- viously stated, carbonic acid becomes heavy under a great cold, and falls from the ceiling to the floor and bed of the sleeper, but because also a great degree of cold in a room where one is sleeping is very certain to cause dangerous and even fatal forms of conges- tion in the brain and lungs. The same ailments re- sult from keeping sitting or sleeping apartments over- heated. Jn midwinter, the heat of a sitting-room should not exceed sixty degrees of Fahrenheit, five feet above the floor. In the chambers of the sick in French hospitals, tbe directors are careful that there shall not be a greater heat than sixty degrees or about fifteen centigrade. The temperature of a sleeping apartment for invalids and for children in health should range about fifty degrees in cold weather, and not run lower than thirty-five; there is no advantage in sleeping in a colder atmosphere. Five hundred cubic inches of pure air should be de- livered to invalids and sleepers every hour, as is the custom in the best-regulated French hospitals. NERVOUSNESS, DEBILITIES, ETC. The nervous fluid is manufactured from the blood; the nerves themselves are nourished and repaired by the blood. The whole nervous system may become diseased in three ways: first, by sudden shocks; sec- ond, by excessive action; third, by an unnatural con- dition of the blood for a long time. That mental shocks, as from fear, or bad news, may prostrate the nervous system, destroy the mind, and life itseli, needs no argument. That hard work, insufficient sleep, too great a press of business, or too much time
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