Human body temperature has decreased in the United States, Stanford study finds – ScienceBlog.com


Since the early 19th century, the average human body temperature in the United States has dropped, according to a study by researchers at the Stanford.

 

Since the early 19th century, the average human body temperature in the United States has dropped, according to a study by researchers at the Stanford University School of Medicine.

“Our temperature’s not what people think it is,” said Julie Parsonnet, MD, professor of medicine and of health research and policy. “What everybody grew up learning, which is that our normal temperature is 98.6, is wrong.”

That standard of 98.6 F was established by German physician Carl Reinhold August Wunderlich in 1851. Modern studies, however, have called that number into question, suggesting that it’s too high. A recent study, for example, found the average temperature of 25,000 British patients to be 97.9 F.

In a study published today in eLife, Parsonnet and her colleagues explore body temperature trends and conclude that temperature changes since the time of Wunderlich reflect a true historical pattern, rather than measurement errors or biases. Parsonnet, who holds the George DeForest Barnett Professorship, is the senior author. Myroslava Protsiv, a former Stanford research scientist who is now at the Karolinska Institute, is the lead author.

The researchers propose that the decrease in body temperature is the result of changes in our environment over the past 200 years, which have in turn driven physiological changes.[…]

Read More: Human body temperature has decreased in the United States, Stanford study finds – ScienceBlog.com

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Director of Manchester School of Samba at http://www.sambaman.org.uk
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