What is a body temperature?

Body temperature is a measure of the warmth or coldness of the human body. It is typically measured in degrees Celsius (°C) or degrees Fahrenheit (°F).

The average adult body temperature is around 37°C (98.6°F). However, this can vary from person to person and throughout the day. For example, body temperature is usually lower in the morning and higher in the evening. It can also be affected by factors such as exercise, stress, and illness.

Body temperature is regulated by the hypothalamus, which is a small part of the brain. The hypothalamus works to keep body temperature within a narrow range, even when the external temperature changes.

How is body temperature regulated?

The body uses several mechanisms to regulate its temperature, including:

* Sweating: When the body is too hot, it produces sweat. As the sweat evaporates, it cools the skin.

* Vasodilation: When the body is too cold, the blood vessels near the skin dilate. This allows more warm blood to flow to the skin, which helps to raise the body temperature.

* Shivering: When the body is too cold, it also shivers. This involuntary muscle movement generates heat, which helps to raise the body temperature.

What are the different types of body temperature?

There are three main types of body temperature:

* Oral temperature: This is the temperature taken inside the mouth.

* Rectal temperature: This is the temperature taken inside the rectum.

* Axillary temperature: This is the temperature taken under the arm.

Oral temperature is usually the most convenient method, but it can be less accurate than rectal temperature. Rectal temperature is considered the most accurate method, but it can be uncomfortable for some people. Axillary temperature is the least accurate method, but it is the easiest to take.

What is a fever?

A fever is a body temperature that is higher than normal. Fevers are often a sign of infection, but they can also be caused by other factors, such as dehydration or medications.

Most fevers are not harmful and will go away on their own. However, if you have a fever of 104°F (40°C) or higher, you should see a doctor immediately.

What are the symptoms of a fever?

In addition to a high temperature, other symptoms of a fever may include:

* Chills

* Sweating

* Headache

* Muscle aches

* Fatigue

* Loss of appetite

How is a fever treated?

The treatment for a fever depends on the cause of the fever. If the fever is caused by an infection, the doctor may prescribe antibiotics or other medications. The doctor may also recommend measures to reduce the fever, such as taking over-the-counter pain relievers or using a cool bath or compress.

When should I see a doctor about a fever?

You should see a doctor if you have a fever of 104°F (40°C) or higher, or if you have a fever that lasts more than three days. You should also see a doctor if you have any of the following symptoms along with a fever:

* Severe headache

* Stiff neck

* Rash

* Difficulty breathing

* Chest pain

* Abdominal pain

* Vomiting

* Diarrhea