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  2. Hypothermia - Wikipedia

    en.wikipedia.org/wiki/Hypothermia

    A water temperature of 10 °C (50 °F) can lead to death in as little as one hour, and water temperatures near freezing can cause death in as little as 15 minutes. [37] During the sinking of the Titanic , most people who entered the −2 °C (28 °F) water died in 15–30 minutes.

  3. Cold shock response - Wikipedia

    en.wikipedia.org/wiki/Cold_shock_response

    The volume of the cold shock proteins produced will depend on the severity of the temperature decrease. [9] The function of these cold shock proteins is to assist the cell in adapting to the sudden temperature change, allowing it to maintain as close to a normal level of function as possible. [6]

  4. Fever - Wikipedia

    en.wikipedia.org/wiki/Fever

    Normal body temperatures vary depending on many factors, including age, sex, time of day, ambient temperature, activity level, and more. [37] [38] Normal daily temperature variation has been described as 0.5 °C (0.9 °F). [7]: 4012 A raised temperature is not always a fever. [37]

  5. Liquid hydrogen - Wikipedia

    en.wikipedia.org/wiki/Liquid_hydrogen

    However, the liquid density is very low compared to other common fuels. Once liquefied, it can be maintained as a liquid for some time in thermally insulated containers. [6] There are two spin isomers of hydrogen; whereas room temperature hydrogen is mostly orthohydrogen, liquid hydrogen consists of 99.79% parahydrogen and 0.21% orthohydrogen. [5]

  6. Cold and heat adaptations in humans - Wikipedia

    en.wikipedia.org/wiki/Cold_and_heat_adaptations...

    Sweating occurs when the ambient air temperature is above 35 °C (95 °F) [dubious – discuss] and the body fails to return to the normal internal temperature. [18] The evaporation of the sweat helps cool the blood beneath the skin. It is limited by the amount of water available in the body, which can cause dehydration. [5]

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  8. Shivering - Wikipedia

    en.wikipedia.org/wiki/Shivering

    Shivering can also be a response to fever, as a person may feel cold. During fever, the hypothalamic set point for temperature is raised. The increased set point causes the body temperature to rise , but also makes the patient feel cold until the new set point is reached. Severe chills with violent shivering are called rigors. Rigors occur ...

  9. Anna Bågenholm - Wikipedia

    en.wikipedia.org/wiki/Anna_Bågenholm

    During this time she experienced extreme hypothermia and her body temperature decreased to 13.7 °C (56.7 °F), one of the lowest survived body temperatures ever recorded in a human with accidental hypothermia. [3] Bågenholm was able to find an air pocket under the ice, but experienced circulatory arrest after 40 minutes in the water.