Health Conditions - For Everyone

Causes of Fever
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Causes of fever

Fever is usually cause by the body in response to a viral or bacterial infection of some type. When bacteria or viruses invade the body and cause infection, they are able to do so because the body provides the perfect environment for them to multiply and infect. The body's core temperature of 37°C (or 98.6°F) is the optimal environment for viruses or bacteria to live and breed, but they cannot survive long in temperatures a lot higher or a lot lower than this.

In response to a viral or bacterial infection, the hypothalamus (the body's thermostat) increases the body temperature rapidly and drops it just as rapidly (which is why the symptoms of feeling hot then shivering cold are common symptoms of fever). The rapid changes in body temperature kills off many of the viruses or bacteria and prevents them from continuing to multiple. By rapidly increasing and decreasing the body temperature, the hypothalamus is trying to bring the body back to a healthy state.


Fever can also be caused by the following:


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  Last reviewed: 8 September 2007 || Last updated: 17 February 2009


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NOTE: Mega doses of any type of vitamin, mineral, amino acid or herbal supplement cannot cure illnesses and in fact can be very dangerous and produce toxic side effects and interfere with medicine you are taking. Always ensure you consult your doctor before taking any type of complementary supplements.
Disclaimer: This guide is not intended to be used for diagnostic or prescriptive purposes. For any treatment or diagnosis of illness, please see your doctor.


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