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This is due to the fact that skin is the interface where heat is lost. Our body due to constant functioning, produces heat constantly as a by-product (due to exothermic reaction of ATP break mainly). The excess heat needs to be conducted away from the body, or it will cause a decrease in the body metabolism to prevent temperature rise. Heat is lost mainly ...


Both pictures you posted show that increased peripheral vascular resistance decrease cardiac output. If you are talking about someone outdoors not properly dressed in a Scandinavian winter, then their cutaneous vasculature would constrict and Also their extremities would get less blood flow. That would increase peripheral vascular resistance and thus ...

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