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Thread: Why is my blood hot?

  1. #1 Why is my blood hot? 
    Forum Senior Weterman's Avatar
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    So I had a nose bleed the other day, and I had no shirt on, and some blood dripped on my chest. And it was hot! It hurt, like hot coffee. I touched it with my finger about a minute after it hit my chest, and it wasn't hot anymore.

    But anyways, why was my blood so hot? Also, this might be related, but sometimes, when I'm having a good time, my face get's hot. So I assume some of the blood in my face was hot, and when it dripped on my chest it was still hot. But I don't know. I wonder if I just cut my face, if the blood will be hot.


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  3. #2  
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    What drugs were you on at the time?


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  4. #3  
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    Your skin is usually cooler than your blood and your internal organs. The skin is the major cooling/ temperature balancing organ of the body.

    The only time you could reasonable expect that your skin would be warmer/ hotter than anything inside the skin would be when you're in a hot bath or shower or a sauna ... or you're deliberately heating your skin by sun or other heat exposure.
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  5. #4  
    Brassica oleracea Strange's Avatar
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    You might be interested in this other thread: Why 37?
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  6. #5  
    Forum Professor pyoko's Avatar
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    Blood is just much hotter than the surface of the skin and it can come as a shock, seeming like it burns. Especially if it surprises you. The mind can be fooled.
    It is by will alone I set my mind in motion.
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  7. #6  
    Life-Size Nanoputian Flick Montana's Avatar
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    Quote Originally Posted by Weterman View Post
    why was my blood so hot?
    Because your internal temperature is higher than the temperature of the surface of your skin, so your blood would feel warm immediately after leaving the body. Blood is kept at a certain temperature and pH in order to maintain healthy enzymatic processes.

    Quote Originally Posted by Weterman View Post
    some blood dripped on my chest. And it was hot! It hurt, like hot coffee.
    No, it didn't. If it did, it probably had something to do with all the cocaine you were snorting.

    Quote Originally Posted by Weterman View Post
    when I'm having a good time, my face get's hot.
    That is just due to increased blood flow associated with physical activity and some emotional responses.
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  8. #7  
    Forum Professor jrmonroe's Avatar
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    Quote Originally Posted by Weterman View Post
    So I had a nose bleed the other day, and I had no shirt on, and some blood dripped on my chest. And it was hot! It hurt, like hot coffee.
    Ditto to all the other replies. Also, the source of the bleed from your nose was probably near core temperature (37C or 98.6F) that the body maintains because it's about one foot away from your heart. It probably felt very hot like hot coffee because the heat was totally unexpected; however, no one can tolerate over ~60C or ~140F for a split second on their hands and even 45C or 113F in the shower is too hot for most people, so I think the heat you felt was illusionary.
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  9. #8  
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    Quote Originally Posted by jrmonroe View Post
    Quote Originally Posted by Weterman View Post
    So I had a nose bleed the other day, and I had no shirt on, and some blood dripped on my chest. And it was hot! It hurt, like hot coffee.
    Ditto to all the other replies. Also, the source of the bleed from your nose was probably near core temperature (37C or 98.6F) that the body maintains because it's about one foot away from your heart. It probably felt very hot like hot coffee because the heat was totally unexpected; however, no one can tolerate over ~60C or ~140F for a split second on their hands and even 45C or 113F in the shower is too hot for most people, so I think the heat you felt was illusionary.
    Ok I see.
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