[duke_of_hazard]

How much does your base metabolic rate ( BMR ) rise in colder temps? In colder weather the body loses heat much faster so has to burn more calories to keep warm. Any equations for this? It may not be linear since the body shuts down blood flow to extremities.

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[Nickel]

I've always heard that your body has to work harder to cool you off than to warm you up.

http://www.naturalstrength.com/nutrition/detail.asp?ArticleID=227