Abstract
The saying “cold hands, warm heart” probably has a basis in temperature differences between men and women. In medicine, infrared tympanic thermometers (ITT) are widely used to quickly and reliably determine core temperature by measuring the infrared radiation given off by the tympanic membrane. 1 Edge G Morgan M The Genius infrared thermometer. Anaesthesia. 1993; 48: 604-607 Crossref PubMed Scopus (45) Google Scholar , 2 Yeo SA Hayashi RH Wan JY Dubler B Tympanic versus rectal thermometry in pregnant women. J Obstet Gynecol Neonat Nurse. 1995; 24: 719-724 Crossref PubMed Scopus (5) Google Scholar This technology can also be applied to measure the temperature on any body surface and has been successfully used to measure the temperature of the cornea. 3 Fujishima H Toda I Yamada M Sato N Tsubota K Corneal temperature in patients with dry eye evaluated by infrared radiation thermometry. Br J Ophthalmol. 1996; 80: 29-32 Crossref PubMed Scopus (96) Google Scholar We used this instrument to investigate the role of sex in determining core and hand temperatures.
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