Appliance of Science: Why do we feel cold when we have a fever?

This question was sent in by a reader from Dublin. We all know what, it’s like, the thermometer says our temperature is up but all we want to do is wrap ourselves in blankets and sit near a warm fire. So why is that? 

Firstly, we need to take a look at what our normal body temperature is and how it is regulated.

BODY TEMPERATURE AND REGULATION