Re­searchers link skin hard­ness with body tem­per­a­ture

BioSpectrum (Asia) - - SCIENCE NEWS -

A group of re­searchers at the Korea Ad­vanced In­sti­tute of Sci­ence and Tech­nol­ogy (KAIST), South Korea, has found that hu­man body tem­per­a­ture can be more ac­cu­rately es­ti­mated when skin hard­ness is taken into con­sid­er­a­tion. Un­der the same tem­per­a­ture and hu­mid­ity, hu­man ther­mal sta­tus may vary due to in­di­vid­ual body con­sti­tu­tion and cli­matic en­vi­ron­ment. Skin tem­per­a­ture and sweat rate fall short of pro­vid­ing an ex­act es­ti­ma­tion of hu­man ther­mal com­fort. An ad­di­tional in­di­ca­tor is re­quired for en­hanc­ing the ac­cu­racy and re­li­a­bil­ity of es­ti­ma­tion. The re­search team has found out that skin hard­ness is an ad­di­tional, in­de­pen­dent phys­i­o­log­i­cal sign to as­sess hu­man ther­mal sta­tus more ac­cu­rately. When peo­ple feel hot or cold, ar­rec­tor pili mus­cles con­nected to hair fol­li­cles con­tract and ex­pand. This re­sults in changes in skin hard­ness, which is mea­sur­able.

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