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(meteorobs) body heat



    Some comments on hot beverages.
 
When you consume a hot liquid, the temperature of your body core rises thru conduction. This elevates the temperature of the blood coursing  thru the digestive system and subsequently  through the body. This thermal energy is imparted to the tissues that it contacts. The capillaries do dilate. (When the body's extremities became chilled, the capillaries closed down to conserve heat at the core-where vital organs are located.)
 
The bottom line is that the hot liquid does provide temporary relief from the cold and then after this heat is counteracted by the outside chill the body resumes it miserable state :-)
 
So its up to you to decide whether the temporary relief is worth it.
 
Dont forget the considerable downside aspect of having to release the liquid waste in a subzero environment. (Assuming you are in the wild and not near heated plumbing)
 
Good luck weighing the pros and cons of the war on heat conservation :-)
 
Tom