Why does our body have such self destructive temperature regulation when we contract something and how does it work?

Question

To clarify the question:

1. Why does our body raise the temperature so high to the point where neither we nor whatever is inside us can survive?
2. How does our body raise the temperature?
-Follow up question:
What is the highest temperature our body can achieve on it’s own?

In: Biology

Answer 1

Our body can survive higher temperatures than whatever infection we have. Plus better safe than sorry, so it knows even if there’s a 20% of dying from a temperature, there’s a higher chance of dying from the infection.