Re:Decreasing human body temperature in the U.S. since the i...
by jfengel on Thursday January 09, 2020 @01:39PM
(#22004063)
98.6°F is an over-precise conversion of 37°C. The number was originally measured as 37°C, with two digits of precision. It shouldn't have been reported as 98.6°F, though a correct rounding would have been even less accurate: the number is closer to 98.2°F/36.8°C, but the proper rounding of the conversion would have rounded up to 99°F.
There is, of course, significant variation from person to person, so two digits of precision is probably all that's really appropriate.
I wouldn't be surprised if 36.6 is correct, people rounded that up to 37, converted to Fahrenheit, and we just converted back to Celsius.