How does fever speed up metabolism?

Answer 1

When the body is sick or physically stressed, there is a series of chemical reactions that produce much needed compounds, such as proteins, enzymes, and hormones. Here we have an increase in anabolism.

The body, when in a state of illness, also needs certain molecules and compounds broken down to be used for resources, including a fuel supply of the immune system. This is an example of an increase in catabolism.

Anyone with a fever shows an elevated body temperature. This should be followed with an elevated blood pressure as well. All these things (and these are only a select few examples) are evidence of an increase in the biochemical processes of the body, which is the same as an increase in body metabolism.

Answer 2

Fever increases metabolic rate by stimulating the body to produce more heat. This results in a higher demand for energy, which leads to an increase in metabolic activity. Additionally, fever can enhance the immune response, which also requires higher metabolic activity.