What is the normal body temperature?

Many people do not understand the changes in their body temperature when they have a fever, so they often cannot realize that they are sick in time. There is no fixed and accurate number for what is a normal human body temperature, because everyone's body is different and their body temperature is also different. The body temperature of men and women is different, and the body temperature of the elderly and children is also different. If you want to know more details, please read on.

Some people even think that human body temperature does not change, that is, it is a fixed value. In fact, it is not. The human body temperature changes slightly in the morning and at noon, and is at different values ​​at night. This is something everyone should pay attention to.

Most people believe that a normal person's body temperature is constant, which is a misconception. In fact, body temperature is different in different parts of the celestial body, and is also different in the morning and evening of each day. In addition, there are differences between men and women. So what is the normal body temperature of the human body? The normal oral temperature is 36.5~37.2℃, and the armpit temperature is lower than the oral temperature. 0.3～0.6℃, rectal temperature (also called anal temperature) is higher than oral temperature. 0.3 ～0.5 ℃. In the biological rhythm of a day, body temperature is lowest between 2 and 5 in the morning and highest between 5 and 7 in the afternoon, but the difference within a day should be less than 1°C. In addition, the body temperatures of men and women are also different. Women's body temperatures are generally about 0.3 ℃ higher than men's. Women's body temperature is also related to menstruation, which I will not go into details here. Therefore, human body temperature has a relatively stable range, but it is not constant.

Body temperature refers to the temperature inside the body. The normal axillary temperature is 36-37 degrees, the oral temperature is 36.2-37.2 degrees, and the rectal temperature is 0.3-0.5 degrees higher than the oral temperature.

The temperature of a normal human body is relatively constant, with slight fluctuations within 24 hours, generally not exceeding 1 degree. Under physiological conditions, body temperature is slightly lower in the morning and slightly higher in the afternoon. The body temperature is slightly higher during exercise, after eating, before menstruation or during pregnancy for women, while the body temperature is lower in the elderly. A body temperature higher than normal is called fever, 37.5-38 degrees is low fever, 38-39 degrees is moderate fever, 39-40 degrees is high fever, and above 40 degrees is very high fever. Body temperature below normal is called hypothermia. A relatively constant body temperature is one of the important conditions for maintaining normal life activities. If the body temperature is higher than 41 degrees or too low, it will seriously affect the functional activities of various systems (especially the nervous system) and even endanger life.

The above introduces to you some knowledge about normal human body temperature. You should learn more about your own body. If you can know the changes in your body temperature in time, you can also better understand your physical health, so you can better protect your body.