I varmt klimat ökar människans energibehov något.
Citat:
These increased requirements are probably due to the increased heat load imposed on the body by solar radiation and the extreme heat. The increased requirements, in all likelihood, are a combination of increased action by blood in heat transport, increased action of the sweat glands, increased calorie loss due to sweat vaporization, plus the increase in metabolic rate due to the elevation in body temperature. It has been calculated that a degree centigrade rise in environmental temperature over 25° C is equivalent to 105 Cal., or 1.4 cal/kg of body weight/deg.C.
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United Nations Assessment of the Report of the Second Committe On Calorie Requirements, Food and Agriculture Organization of the United Nations.
Huttrande vid kyla ökar också energiförbrukningen och fettoxidationen.
http://ep.physoc.org/cgi/reprint/83/5/679.pdf