Vasovagal syncope and Darwinian fitness

@article{Diehl2005VasovagalSA,
  title={Vasovagal syncope and Darwinian fitness},
  author={Rolf R Diehl},
  journal={Clinical Autonomic Research},
  year={2005},
  volume={15},
  pages={126-129}
}
  • R. Diehl
  • Published 1 April 2005
  • Biology, Medicine
  • Clinical Autonomic Research
Vasovagal syncope, although often seen as a disease, is the result of a neurophysiological reflex which can be induced in most healthy people after a 30 % reduction in blood volume either by venous pooling or by hemorrhage. Studies in mammals showed that the activation of certain brainstem nuclei including the caudal midline medulla is responsible for hypotension and bradycardia following central hypovolemia. The hypothesis is presented that vasovagal fainting developed during the evolution in… 

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...

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