Stanford Medical School, United States, Cazalet discussed on Here & Now


Around one twenty over eighty and temperature well that little marker on the old mercury thermometers says it all ninety eight point six except that nearly one hundred seventy years after that was determined to be the norm scientists say it's lower we know our bodies are little engines with cells turning food into energy creating heat and temperature but what does it mean that it's lower the new study from researchers at Stanford medical school is called decreasing human body temperature in the United States since the industrial revolution researcher Cazalet joins us now and doctor lay with what's the new finding ninety eight point six is too high and we think that the average normal human body temperature is closer to ninety seven point five if the let's back up how do we determine that the temperature for a well functioning engine should be ninety eight point six I was determined in eighteen fifty one a German physician called Carl Wunderlich measured millions of temperature measurements from a twenty five thousand patients and that's how we came up with a ninety eight point six so that population in an era where people were really quite different there was a lot of infection in the population like tuberculosis and syphilis and periodontitis lots of chronic inflammation that may well if we think influence that the normal body temperature of that era meaning what people were having to fight off more infections they might have just run a little hotter yes well we know that since then our standard of living has increased dramatically economic development changes and hygiene and we've taken all sorts of infections away now well and we've also made it easier for us to fight them we have heating we have air conditioning the body doesn't have to do as much that's absolutely right we know that we spend a lot of time.

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