And I do believe that we burn more calories when it is cold outside (increased metabolism?)...
But does anyone know how many more calories we burn when its cold outside?! Like 5 extra an hour?
Soldiers are given more calories in cold weather ops, but they are outside all day and have heavy gear.
Animals do get fatter, but I believe that's because they eat more, in preparation of winter. But I could be wrong.
once again, 'calorie' is a unit of measurement for energy, even look it up on dictionary.com or wikipedia.org
yes we burn more calories when cold. When the air around us is colder then our body temperature, our body act as an heating device, and we actually loose some of our heat in the air. the colder the air around us, the more heat we loose this way. Our body needs to create more heat, thus burning calories in the process. If it didn't we'd be cold blooded like lizards and we'd die from the cold.
However, passed a certain point, if you were to, let's say workout in the cold, your body wouldn't need to cool itself, which would then lead to the specific exercise to consume less calories because it's not wasting any on cooling.
This also means that if you live in a warm climate and your always hot and sweaty for just being there, your body also spend extra energy trying to get that heat out of you (the hotter the external temperature, the harder your body has to work to cool you down)
To sum up, yes the body uses energy (calories) to combat cold, but he also uses energy to combat heat.
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