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Medical Pain and the brain/consciousness

  1. Jul 6, 2008 #1
    Does/can pain itself cause loss of consciousness- why?/how thanks
  2. jcsd
  3. Jul 7, 2008 #2


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    Yes, you can have a vasovagal syncope in response to a pain stimulus. The cardioinhibitory or vasodilatory response results in a drop in heart rate or blood pressure, leading to fainting.

    I don't really know why your body responds in such a way, my speculation is that it might be our evolutionary-left-over way of playing dead in a dangerous situation?
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