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>https://youtu.be/zpcI_g_zrpk > >I found a video about how brown fat cells, not just >muscles, can generate warmth. Young children have a >lot of those, which explains why many kids happily go >barefoot in shorts and short sleeves in cool weather >while their parents shiver. > >Seems like it can be trained to some extent by cold >exposure. > >Sadly a lot of parents seem to say "Put on shoes, I'm >cold" without realizing that their children might >experience the same temperature quite differently.

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