coldness is a desire, compared to heat. but we can stand from the cold first our body's blood at least 110. strong in the face of cold. "experience" I had several times done swimming in his early cold water pool my body could not stand the cold. but continuously I continue it still can not afford, it turns out my body again less blood maybe than that why the body quickly vibrate with cold ...? best regards from @aemkar. happy to be one as your friend @leoplaw
Have you heard of the "Iceman", Wim Hof?
Wim Hof (born 20 April 1959) is a Dutch daredevil[1], commonly nicknamed "The Iceman" for his ability to withstand extreme cold,[2] which he attributes to exposure to cold, meditation and breathing techniques (similar to the Tibetan technique Tummo).[3]
http://www.icemanwimhof.com/
https://en.wikipedia.org/wiki/Wim_Hof