system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do people with fevers feel like they're cold?

Just experienced this and was wondering why it happens.

EDIT: Thank you all for the info! Very interesting stuff.
gpt
The heat of a fever is just the consequence not the cause. A fever is a defensive mechanism to make your body less hospitable to a disease.

It tell the body "you are too cold, you need to heat up" which is why you feel cold because the fever have changed the target temperature to hotter.