I.e. nights where it’s too hot to be completely under the blanket but too cold to be without a blanket but having a limb covered keeps your whole body warm.
In: Biology
Covering our bodies “warms” us not by transferring heat *into* us, but by keeping body heat from escaping. So when you cover a part of your body, that part will lose less heat, reducing the overall loss of heat from your body to the environment, which results in feeling a bit warmer. Depending on the environment, that can be enough.
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