Body temperature changes during the practice of g Tum-mo yoga

@article{Benson1982BodyTC,
  title={Body temperature changes during the practice of g Tum-mo yoga},
  author={Herbert Benson and John W. Lehmann and M. S. Malhotra and Ralph F. Goldman and Jeffrey Hopkins and Mark D. Epstein},
  journal={Nature},
  year={1982},
  volume={295},
  pages={234-236}
}
Since meditative practices are associated with changes that are consistent with decreased activity of the sympathetic nervous system1–7, it is conceivable that measurable body temperature changes accompany advanced meditative states. With the help of H.H. the Dalai Lama, we have investigated such a possibility on three practitioners of the advanced Tibetan Buddhist meditational practice known as g Tum-mo (heat) yoga living in Upper Dharamsala, India. We report here that in a study performed… 

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...

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