. Advanced biology. Biology; Physiology; Reproduction. SCIENCE AND HEALTH 417 unfit for front-line duty. They had been out of school a very short time, but, evidently, had received very little, if any, instruc- tion in health. Science and health. In the Report on National Vitality, issued by President Roosevelt's Conservation Commission on National Vitality, it was claimed that the reasonable application of scientific knowledge would add at least fifteen years to the average lifetime. It stated that at least 40 per cent of American mortality was pre- ventable or postponable. There are probabl}


. Advanced biology. Biology; Physiology; Reproduction. SCIENCE AND HEALTH 417 unfit for front-line duty. They had been out of school a very short time, but, evidently, had received very little, if any, instruc- tion in health. Science and health. In the Report on National Vitality, issued by President Roosevelt's Conservation Commission on National Vitality, it was claimed that the reasonable application of scientific knowledge would add at least fifteen years to the average lifetime. It stated that at least 40 per cent of American mortality was pre- ventable or postponable. There are probabl}' always three mil- lion people ill in this country at one time. About 50 per cent of this illness is probably preventable. This report was issued in 1909. The expectation of life has gone up since that time from, approximately, forty-five years to fifty-five years, according to the figures of the Life Extension Underwood & Underwood Health is more aften a matter of preventior than cure. In baby clinics, nurses weigh, measure, and make various examinations of babies to make sure that they are in good health. Along with the diseases that have been partially or entirely con- trolled through scientific investigation and health education, there has been a big drop in mortality. The deaths from typhoid fever. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wheat, Frank Merrill; Fitzpatrick, Elizabeth T. New York ; Boston [etc. ] : American Book Company


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Keywords: ., bookcentury1900, bookdecade1920, booksubje, booksubjectphysiology