Why is it dangerous to increase body temperature over 40 degrees?

An increase in body temperature is the process of protecting the body from various threats. When a virus enters the body, the temperature rises to weaken it. But there are often times when the temperature rises to 42 degrees Celsius. This is already very life-threatening. The fact is that at temperatures above, proteins in the cells of the body already begin to break down. Thermal destruction of cells literally occurs. They are not baked, but simply destroyed. Therefore, with a dangerous increase in temperature, they begin to lower it.