36.8°C (98.24°F): As we know, 36.8° Celsius or 98.24° Fahrenheit is the average human body temperature. These are accurate figures, but most take them to be 37°C or 98°F. Medical thermometers for measuring human body temperature are often calibrated with Fahrenheit units. Therefore, a reading above 98.24°F on your thermometer would indicate a high fever.
High fever is when an organism’s body heats up above its normal temperature. This may be due to external factors. Sometimes the body also raises its temperature as a defense mechanism against pathogens and other conditions.
Facts about fever
- Normal body temperature can range from 36.5°C (97.7°F) to 37.5°C (99.5°F). Some people may have a normal temperature that is slightly higher than the average of 98.24°F.
- The hypothalamus, a part of the brain, is responsible for regulating body temperature.
- Human body temperature varies slightly throughout the day.
- Common infections such as colds and stomach flu are the most common causes.
- The opposite of fever (i.e. body temperature higher than normal) is hypothermia (i.e. body temperature lower than normal).
Temperature can be measured from different parts of the body:
- Mouth: Human body temperature is usually measured through the mouth of a person.
- Rectal: The measured temperature will be 0.5 to 0.7°F higher than the oral reading.
- Armpit: The measured temperature will be 0.3 to 0.4°F lower than the reading taken from the mouth.
Normal human body temperature
There is no universal normal human body temperature. It varies slightly from person to person and also depends on the age of the person.
Normal body temperature for a baby
The American Academy of Pediatrics (AAP) states that the body temperature (measured rectal) of a healthy human baby is between 97°F and 100.3°F.
Normal body temperature for children
According to the American Academy of Pediatrics, the body temperature of a human baby is between 97°F and 100.4°F (36°C to 38°C degrees Celsius).
Normal body temperature for adults
If measured in the mouth, body temperature in human adults is about 36.8°C (98.2°F). If the temperature is taken in the armpit, a normal reading should be about 36.5°C (97.7°F). Body temperatures in body cavities such as the rectum, vagina, or ear are about 37.5°C (99.5°F).