Does drinking hot/cold fluids change your body temperature?

Does drinking hot/cold fluids change your body temperature?

You can check the answer of the people under the question at Quora “taking temperature after drinking coffee

0 thoughts on “Does drinking hot/cold fluids change your body temperature?”

  1. If we use water as an example and talk about core body temperature, cold water will raise core temperature (make warmer) a little and hot water will lower core temperature (make cooler) s little.
    However, drinking cold water on a hot day will lower ( make cooler) the temperature of your head a little, which is the part that gets the hottest, when your outside in the sun.
    Drinking a mug of hot chocolate on a cold day dose make you warmer because it contains caffeine. Caffeine fires up your internal burners and you heat up from your core. Also, your hands, which get coldest in cold weather, warm up from clutching the mug. And also your head that includes you face, which is the coldest part if you are outside, gets warmer….this is true of coffee and tea as well.
    Alcohol drinks, whether they are cold or hot, will lower your core body temperature because they cause heat to leave the body. The escaping heat warms up your skin and makes you feel warmer. This works well if you’re tucked into bed with quilts because you feel warmer and the heat can’t escape!

  2. Amused by the idea from another post that cold water will make you warmer and warm water will make you colder: I note it doesn’t say how this might work, and I do not belive it for a moment.
    Drink a pint of cold water or any other drink, and it will lower your body temperature slightly. Say the water is at 5C (an ordinary fridge temperature) and your body is at 37, if you weigh 70kg (average human), the cooling effect of 0.568kg of water (1 pint) will be diluted among all the body eventually. Assuming the whole body is at core temperature (a warm day and you are warm to your finger tips, and just on the edge of sweating), then as a rough approximation the temperature change will be (37–5)x0.568/70=0.259. In fact, it will be slightly higher than that because some of the body is fat, which needs less heat to change its temperature (lower specific heat) than the water that makes up most of the body. If you are very cold already, cold hands and feet, just short of shivering, your core temperature may be only 36, and the cold drink may even be enough to take you over the threshold and start you shivering.
    I used to be an anaesthetist, and we often measured core temperature during longer operations, as it tends to fall and we had to use active warm air systems to keep it near normal, which needed monitoring in case they were too effective. We would sometimes give room temperature(~20C) IV fluids , and you could watch the temperature fall as you did no, maybe half a degree for 1 litre of fluid, which quite closely matched the calculation above for 1 pint.
    Cold liquids cool you down, but not by much, and you might achieve a greater effect putting them on the skin, as you would then get evaporation too – but that depends on humidity, of course.

  3. Yes, but:

    In the case of hot liquids there isn’t much heat added as there is a limit on how hot a drink can be before you can’t stand the pain of drinking it.
    For cold drinks, that is less of a problem. You can tolerate cold better than heat.
    However, using a very crude form of measurement. One pint of water weighs one pound. So if you weigh 100 pounds, drinking a pint (a canteen) of cold water isn’t going to have much effect. You are putting 1% by weight of cooling or heating into your system.
    So, it has some effect. The effect is minimal.


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