In common currency Tummo is related to the description of intense sensations of body heat, that are held to be a partial effect of the practice of Tummo-meditation. Tummo is taught as one part of the six yogas of Naropa. Stories and eyewitness accounts abound of yogi practitioners being able to generate sufficient heat to dry wet sheets draped around their naked bodies while sitting outside in the freezing cold, not just once, but multiple times. These observations have also been discussed in medical articles (Ding-E Young and Taylor, 1998).

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