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A hide or skin is an animal skin treated for human use. The word "hide" is related to the German word Haut, which means skin.The industry defines hides as "skins" of large animals e.g. cow, buffalo; while skins refer to "skins" of smaller animals: goat, sheep, deer, pig, fish, alligator, snake, etc. Common commercial hides include leather from cattle and other livestock animals, buckskin ...
Human skin is similar to most of the other mammals' skin, and it is very similar to pig skin. Though nearly all human skin is covered with hair follicles, it can appear hairless. There are two general types of skin: hairy and glabrous skin (hairless). The adjective cutaneous literally means "of the skin" (from Latin cutis, skin).
The human body always works to remain in homeostasis. One form of homeostasis is thermoregulation. Body temperature varies in every individual, but the average internal temperature is 37.0 °C (98.6 °F). [1] Sufficient stress from extreme external temperature may cause injury or death if it exceeds the ability of the body to thermoregulate.
The term "temperament" referred to the balance of the qualities of hot, wet, cold, and dry; each human body carried a different mixture of the elements. [1] Thus, the Scythians, who lived in a cold climate, were considered colder and moister in complexion; the Aethiopians were hotter and drier. [1]
A vacuum is the best insulator, but its use in clothing is impractical. Dry air is a practical insulator. Extreme cold weather clothing uses still dry air to insulate the body, [2] layers of loose air trapping material are most effective. The inner layers should conduct moisture away from the body.
Thermoreceptors of the skin sense the temperature of water. A thermoreceptor is a non-specialised sense receptor, or more accurately the receptive portion of a sensory neuron, that codes absolute and relative changes in temperature, primarily within the innocuous range.
A woman wearing sports bra and boyshorts, conventionally women's sportswear, but now worn as casuals or athleisure by women in the West. Clothing physiology is a branch of science that studies the interaction between clothing and the human body, with a particular focus on how clothing affects the physiological and psychological responses of individuals to different environmental conditions.
Two other main hypotheses have been put forward to explain the development of light skin pigmentation: resistance to cold injury, and genetic drift; now both of them are considered unlikely to be the main mechanism behind the evolution of light skin. [2] The resistance to cold injury hypothesis claimed that dark skin was selected against in ...