What does low temperature mean in bad weather

Body temperature: which values ​​are normal?

A certain body temperature is important for the organism to function and for all metabolic processes to run smoothly. Fluctuations in temperature are still normal, because the so-called core body temperature never stays exactly the same and is influenced by various factors.

Body temperature can also vary individually. Values ​​between 36.3 and 37.4 degrees Celsius are referred to as normal temperatures. Values ​​below or above, on the other hand, can indicate disease processes and also become a health problem themselves.

Hypothalamus regulates body temperature

The internal body temperature is regulated by the hypothalamus. This part of the brain constantly checks the current temperature and compares it with the "healthy" temperature of around 37 degrees Celsius. If the internal body temperature is too low, the hypothalamus ensures that the body generates and retains heat. If the temperature is too high, heat is given off or sweat is produced, which cools the skin.

Slight fluctuations in body temperature are normal

Fluctuations in body temperature are normal and depend on external and internal factors. It rises when you exercise and is lower at night than during the day.

The following factors can influence a person's body temperature:

  • Time of day: In the afternoon the temperature is highest and can be up to one degree above the morning value. Then it falls off again.
  • Emotions: feelings affect body temperature. For example, it is usually increased during stress.
  • Physical activity: During exercise or other heavy physical exertion, the temperature can rise to 40 degrees Celsius.
  • Illnesses can lead to a higher, but also to a lower body temperature.
  • Hormonal fluctuations in women: One to two days after ovulation, the body temperature in women rises by around 0.5 degrees Celsius.

Small children have a higher temperature

The body temperature of infants and young children is generally slightly higher than that of adults. One of the reasons for this is that their body surface area is larger in relation to their body weight and their metabolism is more active. The temperature control does not work so well for them, and they sweat less. For this reason, they also react more quickly to changes with a fever.

From 38 degrees Celsius one speaks of a fever

Fever is actually a meaningful response from the body. It occurs when the brain sets the body temperature higher than normal - usually to fight pathogens such as viruses or bacteria. One speaks of a fever when the temperature inside the body rises to at least 38 degrees Celsius.

The following guide values ​​apply to human body temperature:

  • 33.0 to 34.9 ° C - hypothermia
  • 35.0 to 36.2 ° C - undertemperature
  • 36.3 to 37.4 ° C - normal temperature
  • 37.5 to 37.9 ° C - Slightly increased temperature
  • 38.0 to 38.5 ° C - Mild fever
  • 38.6 to 39.0 ° C - Moderate fever
  • 39.1 to 39.9 ° C - High fever
  • 40.0 to 40.9 ° C - Very high fever
  • 41.0 ° C and higher - Extreme fever

Core body temperature is crucial

In science, a distinction is made between core body temperature and surface temperature. The core body temperature is the temperature in the vital internal organs. The surface temperature, also known as the peel value, describes the values ​​on the skin. Due to the outside temperature, it is exposed to much greater fluctuations than the core body temperature and is usually lower than this.

Photo: © ladysuzi - stock.adobe.com

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