Announcement

Collapse
No announcement yet.

The Why thread

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    The Why thread

    I am starting this thread so we can ask questions that we want to know about. It's not a quiz thread. These are the questions that we have in our mind.

    So I want to know that what is fever? What is the exact process that raises our body temperature in case of illness or infection?
    People are afraid of what they don't understand

    #2
    Re: The Why thread.
    The Why thread

    Do we have to answer the previous question before asking another one ?
    Be someone that makes YOU happy

    Comment


      #3
      Re: The Why thread.
      The Why thread

      Fever is one of the ways our immune system tries to combat infection.
      Be someone that makes YOU happy

      Comment


        #4
        Yes you can ask another question before the answer.

        About fever, but how does the mechanism works
        Last edited by TLK; Aug 28, 2013, 08:56 PM.
        People are afraid of what they don't understand

        Comment


          #5
          Re: The Why thread.
          The Why thread

          Good question

          Comment


            #6
            Re: The Why thread.The Why thread

            Originally posted by TLK View Post

            About fever, but how does the mechanism works
            Going to take a shot at answering this. My thought process is usually all over the place...but let's hope I can make some sense.

            Consider the hypothalamus as the ‘thermostat’ of the human body that regulates our core temperature and makes sure to keep it at a certain set-point temperature at all times. When and if the hypothalamic set point changes (through whatever means), it sends out signals to the rest of the body to increase heat production.

            Pyrogens are one example of substances that can change the hypothalamic set point.

            Pyrogens can be either exogenous or endogenous. An exogenous pyrogen example would be some sort of toxin produced by a microbe or bacteria that enters the human body. Once it enters the body the toxin proceeds to interact with the receptors on either macrophages or T-cells which in turn produce fever inducing cytokines. Cytokines are small proteins that regulate immune and inflammatory processes (among other things). Once these cytokines are produced they are released into the systemic circulation. Then these cytokines produce prostaglandins. The prostaglandins that are made in the rest of the body (excluding the brain) accounts for the aches and pains usually experienced when one is sick. The prostaglandins that are made in the brain interact with receptors on glial cells which produce a lot of cyclic AMP (cAMP- a neurotransmitter). It is thought that the rapid release of cAMP is responsible for the increase in hypothalamic set-point of the thermoregulatory center........which leads to what we call a fever.

            Even in the absence of an bacterial/viral infection people still get fevers. This is because cytokines are also released during inflammation or any sort of trauma.
            Just because you have an avocado .................doesn't mean you have guacamole

            Comment


              #7
              Very clear explanation Guac. Thanks a lot. It was so nicely explained that I was able to draw a systematic diagram on my pad to follow the whole procedure. Appreciate it.
              People are afraid of what they don't understand

              Comment


                #8
                Re: The Why thread.
                The Why thread

                Why is this thread title repeated?
                Aada Ganja...Poora Khabis...
                Nawaz Sharif...Shahbaz Sharif :D

                Comment


                  #9
                  Re: The Why thread.The Why thread

                  ^ because it is a special thread opened by TLK J/K


                  Comment


                    #10
                    That was a good question aaliyah.

                    Very clear answer lilly.

                    Next question please.
                    People are afraid of what they don't understand

                    Comment


                      #11
                      Re: The Why thread.
                      The Why thread

                      I always wondered why things are called what they are? Like...why is white called white and not black?
                      Aada Ganja...Poora Khabis...
                      Nawaz Sharif...Shahbaz Sharif :D

                      Comment


                        #12
                        Originally posted by aaliyahkhan1:9718462
                        I always wondered why things are called what they are? Like...why is white called white and not black?
                        This question has no answer. If white was called black, even then you had a similar question.
                        People are afraid of what they don't understand

                        Comment


                          #13
                          How did we figure out what to eat what not to eat, in plants and vegetable? There are so many plants that are poisonous in nature. How did we find out that this particular plant is dangerous for us to eat? Did we just follow animals and stared eating what we saw them eating, or did we lose people who died eating poisonous stuff to realize that we should but eat this or that?
                          People are afraid of what they don't understand

                          Comment


                            #14
                            Re: The Why thread.
                            The Why thread

                            ^Maybe it also has something to with our sense of smell...I am sure we must have smelled things before eating them...maybe something that did not smell appetizing..we kind of stayed away from....

                            Coz...I always smell food before I eat it
                            Aada Ganja...Poora Khabis...
                            Nawaz Sharif...Shahbaz Sharif :D

                            Comment


                              #15
                              Re: The Why thread.
                              The Why thread

                              When one gets flu , we always hear frm ppl it will end in 3 , 5 or 7 days , why it so ?
                              My Attitude :
                              If you want to say bad things about me behind my back,
                              Come in front of me, I'll tell you more 3:)

                              Comment

                              Working...
                              X