The temperature of a person's body does not depend on the temperature of the environment, unless, of course, he is healthy. The constant temperature of the body is supported by a special mechanism - thermoregulation, as reported by the Internet publication for girls and women from 14 to 35 years Pannochka. net Sensations of cold or heat, suggesting to us the appropriate behavior (for example, it is necessary to dress warmer when feeling cold, perform any muscular work to keep warm and t. ) are associated with the function of the cortex of the cerebral hemispheres. And most importantly, the hypothalamus performs an involuntary regulation of body temperature, consisting in increasing or decreasing heat production and heat transfer due to activation of metabolism, for example, compensatory increase in heat production occurs also during cold tremor, with all the heat generated in this case accumulating inside the body.
Simultaneously with the increase in heat production, there is a decrease in heat transfer. Heat is lost by thermal conductivity, heat radiation and by evaporation of sweat (the most efficient heat transfer mechanism). The narrowing of the cutaneous vessels allows a sharp reduction in the cutaneous blood flow and, consequently, heat transfer. The cessation of sweating also significantly reduces it.
It should be noted that only the temperature of the inner regions of the body, the so-called "core" (brain, internal organs), is in the full sense stable. The temperature of the organs and tissues; located on the periphery (skin, skeletal musculature and t. ), which form the "shell" of the body, to a certain extent still increases or decreases according to changes in the temperature of the external environment.
Most accurately, the temperature of the internal areas of the body can be measured in the heart cavity: however, such measurements are complex and conducted only in scientific studies. At home, as a rule, the temperature is measured in the armpit. If during the disease the body temperature does not rise above 38 ° C, then it is regarded as subfebrile, at a temperature up to 39 ° C - as moderate, at 39-41 ° C - as high, and if the temperature exceeds 41 ° C, then fever is assessed as excessively high.
As soon as the temperature starts to rise, the patient feels chills, headache, weakness, pain in the muscles and joints.
At occurrence of such signs it is necessary to drink warm tea, to lay down in bed, having put to a leg or foot a warmer and well having covered a warm blanket.
At a temperature of 40 ° C and above the patient, one should not be left, since he can perform life-threatening activities (due to overexcitation of the central nervous system). During the fever, many toxic products enter the bloodstream.
To better isolate them, and also to increase heat output through sweating, the patient must be given a large amount of liquid (mineral water, berry and fruit juices and t.
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