Why has our average body temperature declined?

Written by Francesca Lake

average body temperature declining

Cold hands, warm heart… cooling body? New research sheds light on why we’re cooling down. The average body temperature is 98.6 degrees Fahrenheit (or 37.0 degrees Celsius) – and has been for nearly two centuries, when it was established by Carl Wunderlich. This temperature is now widely used as a standard to diagnose fever; however, studies have suggested our average body temperature is in decline. A 2017 UK study analyzing 25,000 adults found the average body temperature to be 97.9 degrees Fahrenheit (36.6 degrees Celsius). A 2019 study of adults from Palo Alto (CA, USA) found the average body temperature...

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