. Essentials of biology presented in problems. Biology. 420 HEALTH AND DISEASE those who have weak throat or lungs, are regaining health by sleeping out of doors or with the windows wide open. The only essential in sleeping out of doors or in a room with a low tem- perature is that the body be kept warm and the head be protected from strong drafts by a nightcap or hood. Proper ventilation at all times is one of the greatest factors in good health. Change of Air. â Persons in poor health, especially those having tuberculosis, are often cured by a change of air. This is not always so much due to


. Essentials of biology presented in problems. Biology. 420 HEALTH AND DISEASE those who have weak throat or lungs, are regaining health by sleeping out of doors or with the windows wide open. The only essential in sleeping out of doors or in a room with a low tem- perature is that the body be kept warm and the head be protected from strong drafts by a nightcap or hood. Proper ventilation at all times is one of the greatest factors in good health. Change of Air. â Persons in poor health, especially those having tuberculosis, are often cured by a change of air. This is not always so much due to the composition of the air as to change of occupation, rest, and good food. Mountain air is dry, and rela- tively free from dust and bacteria, and often helps a person having tuberculosis. Air at the seaside is beneficial for some forms of disease, especially hay fever and bone tuberculosis. Many sanitariums have been established for this latter disease near the ocean, and thousands of lives are being aimually saved in this way. The Relation of Pure Food and Pure Water to Health. â Thanks to the care of state and city governments there is little need now- adays for the health of any in- dividual to suffer from impure food or water. But that people do become sick and die from such causes every day is well known, as is shown by the many cases of typhoid fever, summer complaint, and pto- maine poisoning of various sorts. Our milk may have been watered or sent in cans washed with water containing typhoid germs, we may eat oysters bred in contaminated locaHties, we may have re- ceived and eaten fruits or vegetables sprinkled â with Avater containing the germs. Our laws, howe^'er good, cannot cope Math human carelessness. Not only should A\'e as individuals demand from the source of supply pure food and Avater, but we should do our share at home to keep them. Tracks of germs left by a Si ciauluig on a culture in a Please note that these images are extracted from scanned pa


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1911