Why do I feel cold and shiver when I have a fever?
Date: 14 Oct 2011
All of us feel cold and shiver when we have fever. But we are not knowing the reason behind it.
1. What happens after fever?
2. What are the needs of our body during fever?
3. What happens when we feel cold?
4. What are the reasons for "feeling cold".
5. advantages / disadvantages of it.
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View All Answers:
Sultan Mustafijul Hoque
16 Oct 2011 Member Level:
Points : 3 (
1. After fever, usually our body recovers the lack of immunity for the specific cause.
2. Just take good care that any other infection should not take place on the same body. For this, we generally use antibiotic pills.
3. When we feel cold our body starts shivering. Shivering is nothing but movements of our muscle not controlled by our brain so that we can't stop shivering. That movement generates energy and with the help of the generated energy our body tries to kill the difference of temperature with surroundings.
4. We feel cold, that means our body temperature is higher than the surroundings.
5. You get immunity for a period of the particular antigen.
These are the answers in general. But it would be better consulting a doctor/physician for detailed answers and suggestion.
16 Oct 2011 Member Level:
Points : 5 (
Hi ISC member,
Before answering your question, there are some things that one should know about his/her body.
The HYPOTHALAMUS is a part of our brain which is just above the "PITUITARY GLAND".
It is often referred to as the body's "THERMOSTAT". The hypothalamus senses the temperature of the blood in our body and then compares it with a "fixed" body temperature something like a set point which is the desired temperature. If the actual temperature deviates from this set point, it automatically adjusts the temperature.
The best example would be "the new A/C's that has come out with sensors which adjusts the room temperature at an optimum level" automatically. Now the hypothalamus sends out signals that cause one to "SWEAT" if he/she is too hot or to "SHIVER" if he/she is too cold.
"SWEATING COOLS THE BODY". The sweating glands in our skin secretes the sweat when it receives the signal from the hypothalamus and as a result the body cools down because as the sweat evaporates.
"SHIVERING WARMS THE BODY", because when the muscles in our body start to shiver, heat is liberated due to friction between muscle fibers. In addition, it makes us feel uncomfortable, which prompts us to seek out for a heat or cold source. If your body temperature is too low, you'll probably look for a warmer place under a blanket. If it's too hot, you'll look for a cooler area.
When you are running a fever, the body sends signals to the hypothalamus telling it to raise the set point of the body to a higher temperature. Often, but not always, this may be a response to an infection in our body, such as a bacterium or a virus (the virus which is actually the cause of fever). The immune (resistant) cells respond to the infection by secreting molecules called as "pyrogens".
The pyrogens will travel to the hypothalamus via blood, where they re-set the body set point (increase). So now, the hypothalamus tells the body that it is cold than usual. Remember that the temperature may be normal in this condition; but the temperature is lower than the set point, which has to been raised immediately.
"SO YOU WILL FEEL COLD AND TEND TO GET UNDER A BLANKET AND SHIVER".
(hope my answer cleared your doubts)
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