Body Temperature Regulation

VOL. 26, 1940

PHYSIOLOGY: HARDY AND Du BOIS

389

18 Hecht, S., Proc. Nat. Acad. Sci., 23, 227 (1937). 14 Federov, N. T., C. R. Acad. Sci. (URSS), 24, 696 (1939). 15 Crozier, W. J., and Holway, A. H., to be described elsewhere. 16 Steinhardt, J., Jour. Gen. Physiol., 20, 185 (1936-1937). 17 Hecht, S., Peskin, J. C., and Patt, M., Ibid., 22, 7 (1938-1939). 18 Crozier, W. J., Proc. Nat. Acad. Sci., 22, 412 (1936); a fuller account of this matter will be published elsewhere.

DIFFERENCES BETWEEN MEN AND WOMEN IN THEIR RESPONSE TO HEAT AND COLD

BY JAMES D. HARDY AND EUGENE F. Du Bois

RUSSELL SAGE INSTITUTE OF PATHOLOGY IN AFFILIATION WlTH THE NEW YoRx HOSPITAL AND DEPARTMENT OF MEDICINE, CORNELL UNIVERSITY MEDICAL COLLEGE

Read before the Academy, April 22, 1940

There have been a large number of publications dealing with the reactions of men to changes of environmental temperature, but very few studies with women. Just why there has been such a neglect of half our population is not clear. Air conditioning is theoretically based on physiological studies, and politeness alone would demand more consideration of the ladies. It is well known that women in light clothing tolerate a wide range in temperature. This is not due to greater fortitude or vanity but rather a better physiological adjustment. Max.Rubner in 1890 and 1902'-3 outlined the factors concerned in the loss of heat and described the "physical regulation" through changes in heat loss or voluntary activity. He also spoke of a rise in heat production through "chemical regulation" which is induced without visible changes in the activity of the animal. In previous papers from the Russell Sage Institute of Pathology45 presented before this Society we reported that the heat production of the two normal men studied by us in detail was uniform when exposed to temperatures between 22° and 35°C. This is in accordance with the findings of Wiley and Newburgh6 in Ann Arbor, Winslow, Herrington and Gagge7 in...