Stanford researchers have determined that average human body temperature in the United States has decreased since the 1800s.
Research suggests the average American's body temperature has decreased by 0.6 °C over the last 150 years. What is the mechanism behind this?
Human Body Temperature In The U.S. Has Decreased Over Time, Study Finds
Instrumental temperature record - Wikipedia
What is normal, when it comes to people's body temperatures?
Normal body temperature is personal, Stanford Medicine researchers find, News Center
Human body temperature has decreased in United States, study finds, News Center
Human body temperature in the U.S. has decreased over time, study finds
Body temperature: normal ranges & how to measure - cosinuss°
Decreasing human body temperature in the United States since the Industrial Revolution
Body Size and Temperature: Why They Matter
Climate Change Indicators: U.S. and Global Precipitation