Why do some people feel cold and others feel warm?

Some people feel cold and others feel warm because of how their bodies work. Just like some kids burn off energy playing outside while others sit still, our bodies can generate heat in different ways. People who feel warmer might have a higher body temperature, or they might use more energy to keep warm, even when it's chilly around them. Imagine two friends eating the same lunch, one warms up quickly, and the other stays cool. That’s how body temperature differences work!