Others think the change could be caused by lower overall rates of low grade infections and inflammation related to better medical treatments available today. It is possible that our metabolisms have slowed down because of lifestyle changes, like air conditioning and less active jobs. The answer is an unsatisfying “we don’t know,” but there are several theories that attempt to explain this change. Heavier people are warmer than thin ones.īut even when all of that is taken into account, on average, we are running cooler than we did over 100 years ago. There are ordinary things that can cause our baseline body temperature to change throughout the day or within days: One analysis of several studies found that body temperatures have been dropping consistently over the past 170 years, with the new normal being closer to 97.5 degrees, when taken orally. The armpit, ear, mouth, skin and rectum are all different and temperature readings can vary by a few degrees.īut research shows that overall body temperatures have been decreasing over time. Since then, a lot of factors may have contributed to the change in our body temperatures, but one thing is certain: Humans’ normal body temperatures have been decreasing.įirst and foremost, temperature readings can vary significantly depending on where you measure your temperature. The standard 98.6 degree Fahrenheit gauge for normal human body temperature was actually established more than 170 years ago by a German doctor, who made millions of measurements in tens of thousands of patients. The coronavirus pandemic has forced many of us to have our temperature checked far more often than we’re used to - and many of you may have noticed that your temperature is not always the same.
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