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nas_deferens t1_iuhwi4s wrote

Here you go.

Uncoupling proteins and/or thermogenin usually generate heat. I actually have a mild fever now…

The link below should hopefully lead you to some of the answers you’re looking for.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5008714/

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Helmdacil t1_iui6ups wrote

This is the answer. White blood cells causing heat? How do the other posters find that sensical? Energy amounts to raise and sustain body temp in 50 liters of water is IMMENSE. When you start exercising in the cold, it takes minutes to feel the heat.

Brown fat + non shivering skeletal muscles. Makes WAY more sense than white blood cells, a tiny tiny fraction of body mass.

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