What Is a Fever? Understanding Your Body's Natural Response
Fever as a Sign, Not a Disease
Fever is your body's natural defense mechanism; it is not a sickness. Your immune system is frequently defending against an infection, such as a virus or bacterium, when your internal temperature increases over the typical range of 98.6°F or 37°C.
Pyrogens are substances that cause fever by telling the hypothalamus, the brain's thermostat, to boost body temperature.
Fever is your body's natural defense mechanism; it is not a sickness. Your immune system is frequently defending against an infection, such as a virus or bacterium, when your internal temperature increases over the typical range of 98.6°F or 37°C.
progeny are substances that cause fever by telling the hypothalamus, the brain's thermostat, to boost body temperature.
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