Normal body temperature

Body temperature is mainly measured to ensure the normal start of metabolism and physiological activities of the human body. At the same time, body temperature mainly reflects everything about material metabolism. If it changes, it proves some other diseases and can be used for disease diagnosis. In daily life, the human body maintains a constant body temperature, which is also a necessary condition to ensure metabolism and physiological activities. The increase in body temperature in daily life is specifically maintained by reducing heat production and increasing heat dissipation to maintain the mutual calmness of body temperature.

In daily life, we must pay attention to the fact that body temperature is not fixed and can also change with the program and changing factors. The body temperature in daily life can also be checked, which is also relatively constant. So in daily life, we can check the body temperature of patients and observe changes in their condition and the prognosis of certain diseases.

The temperature of the human body is relatively constant. A normal person's body temperature fluctuates slightly within 24 hours, generally with a difference of no more than 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. 37.3-38 degrees Celsius is low fever, 38.1-39 degrees Celsius is moderate fever, 39.1-41 degrees Celsius is high fever, and above 41 degrees Celsius is hyperpyrexia. 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 Celsius or lower than 25 degrees Celsius, it will seriously affect the functional activities of various systems (especially the nervous system) and even endanger life. The body's heat production and heat dissipation are regulated by the nerve center. Many diseases can cause the normal temperature regulation function to be disrupted and cause changes in body temperature. Clinically, checking the patient's body temperature and observing its changes are important for diagnosing diseases or judging the prognosis of certain diseases.

Normal body temperature:

There are differences in body temperature between morning and evening, in different parts of the human body, and between men and women. The normal body temperature of the human body has a relatively stable range, but it is not constant. The normal oral temperature (also known as oral temperature) is 36.2℃～37.2℃, the axillary temperature is 0.2℃～0.5℃ lower than the oral temperature, and the rectal temperature (also known as anal temperature) is 0.2℃～0.6℃ higher than the oral temperature. During the day, body temperature is lowest between 2 and 5 in the morning and highest between 5 and 7 in the afternoon, but the temperature difference within a day should be less than 0.8℃. In addition, women's body temperature is generally about 0.35℃ higher than men's. A woman's body temperature also changes slightly during menstruation, and her body temperature during pregnancy will increase with the secretion of hormones.

When in a healthy state, such as with a normal diet and appropriate clothing, the human body's temperature is generally relatively constant, maintaining at around 37°C (roughly between 36.2°C and 37.2°C), and does not change due to changes in the external ambient temperature. The average normal human body temperature is between 36 and 37 degrees Celsius (axillary). Exceeding this range is fever, below 38 degrees Celsius is low fever, and above 39 degrees Celsius is high fever.

There are three common places to measure body temperature, namely the mouth, armpits and anus:

The normal body temperature of children at the rectum is between 36.5℃ and 37.5℃;

Children's oral temperature is between 36.2℃ and 37.3℃;

For children, the temperature in the armpit is between 35.9℃ and 37.2℃.

After measurement, children's temperature is considered to have a fever when it exceeds the normal range by more than 0.5℃. A temperature not exceeding 38°C is called low fever, and a temperature exceeding 39°C is called high fever.

The above is the normal body temperature of the human body. The body temperature in life is also relatively constant. Therefore, in daily life, we can check the body temperature of patients and observe the changes in the patient's condition and the prognosis of certain diseases. It is of great significance, so we still need to continue to have a simple understanding of normal body temperature. .