We don’t feel heat by how hot it is.
We feel heat based on if our skin is gaining or losing heat.
Our body may have a warm internal temperature but your skin’s surface temperature is closer to ambient.
So if you encounter some hot air that warms your skin or a blanket that prevents your skin from losing heat as easily, your nerves sense any increase in heat energy buildup as “warm”.
Even if it’s just a few degrees warmer.
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