Decreasing human body temperature in the U.S. since the industrial revolution
This is interesting, I didn't know 37° is considered normal in the US. In Ukraine where I grew up as a child (and I imagine also other post-USSR countries), 36.6° was always taught to be the norm, and 37° typically considered an onsetting light fever. However, the typical measurement was always armpit and not oral - maybe that explains the difference.