Standard body temperature range: typical values and variations
Understanding Normal Body Temperatures: A Comprehensive Guide
Body temperatures are a crucial indicator of an individual's health. While the widely accepted normal body temperature has been 98.6°F (37°C) for many years, recent studies suggest that this figure might not be entirely accurate.
The Normal Body Temperature Range for Adults
The Cleveland Clinic, a renowned healthcare provider, states that the normal body temperature range for adults is approximately 97.8°F to 99.1°F (36.4°C to 37.2°C). This range represents typical variation in adult body temperatures measured under normal conditions.
Body Temperatures in Older Age
As people age, studies suggest that core body temperature decreases. For those older than 65, the typical body temperature range is 96.4°F (35.8°C) to 98.5°F (36.9°C).
Temperature Variations Throughout the Day
Body temperatures typically run a little lower in the morning and a bit higher in the afternoon. This natural fluctuation is normal and should not cause concern.
Hypothermia and Fever
A temperature below 95°F (35°C) is considered hypothermia, a medical emergency that requires immediate attention. On the other hand, a temperature higher than 100.4°F (or 38°C) is considered a fever.
Hypothyroidism and Body Temperature
Hypothyroidism, or an underactive thyroid, can slow down metabolism, which can lead to a drop in body temperature.
Accuracy of Thermometers
A rectal thermometer, typically used with young children, is more accurate than other types of thermometers. It's also important to keep thermometers used orally and rectally separate and clearly marked to avoid cross-contamination.
Temperature Changes and Health
It's normal for your temperature to change within a healthy range as you move through your day and your life. However, a low-grade temperature, between a fever and the high end of a healthy temperature, is something to watch, but its significance is hard to know.
When to Seek Medical Advice
If you have any questions or concerns about your temperature, don't hesitate to call your healthcare provider. A fever is usually a reaction to an infection or virus and doesn't require specific treatment, but could signal a medical condition if it persists for more than two days.
Safety Precautions
A thermometer used rectally should never be used orally to avoid spreading bacteria. If you suspect you or someone has hypothermia, call 911 immediately.
Body Temperature Range for Children
The typical body temperature range for children between birth and 10 years old is 95.9°F (35.5°C) to 99.5°F (37.5°C).
Newer Studies on Average Body Temperature
Newer studies suggest the average person today actually runs a little cooler, with an average body temperature between 97.5°F (36.4°C) and 97.9°F (36.6°C). This shift in average body temperature could be due to various factors, including lifestyle changes and improved healthcare.
In conclusion, while the widely accepted normal body temperature has been 98.6°F (37°C) for many years, recent studies suggest that this figure might not be entirely accurate. It's essential to understand the normal body temperature range for your age group and seek medical advice if you have any concerns about your temperature.
