About 150 years ago, the average body temperature of humans was higher than today. Then 37 degrees Celsius was considered the standard of normal temperature. Now in many researches the average body temperature of a healthy person has been found to decrease to about 36.4 degrees Celsius. According to BBC reports, scientists are trying to understand the reason for this. Was there a mistake in measuring temperature in olden times or has body temperature reduced due to better health and changing lifestyle? According to experts, there could be both reasons behind this. Who considered 37 degrees as normal temperature? In the 1860s, German doctor Carl Wunderlich studied fever and body temperature. He measured the temperatures of 25 thousand patients for about 15 years. He collected more than 10 lakh readings from this. Based on these data, he estimated the average temperature of healthy adults to be 37 degrees Celsius or 98.6 degrees Fahrenheit. A temperature above 38 degrees is considered a sign of fever. He had a large number of patients. For this reason the figure of 37 degrees became the standard of normal temperature. Why is the average body temperature low today? The team of infectious disease expert Julie Parsonnet of Stanford University studied the temperature data of about 1.90 lakh people of America. These data were collected between 1862 and 2017. According to research, the average temperature of American adults today is about 36.39 degrees Celsius. The temperature of American men has decreased by about 0.59 degrees compared to the beginning of the 19th century. This change is not limited to developed countries only. The average temperature of the Tsimane community living in the Amazon forests was 37 degrees in the early 2000s, which dropped to 36.5 degrees by 2018. During this period his lifestyle also changed. 3 reasons for decreasing body temperature. Was there a mistake in measuring temperature 150 years ago? Experts examined the glass thermometer used at Wunderlich’s time. According to him, the measurement of this thermometer could have been about 2 degrees Celsius more than modern instruments. At that time, mercury thermometers were about 30 centimeters long and it took 15 to 20 minutes to measure the temperature. Wunderlich used to measure temperature by placing a thermometer in the armpit, whereas today temperature is usually taken by mouth. Therefore it is difficult to make direct comparison of old and new data. Why do scientists consider old data to be correct? Experts also studied the temperature records of American soldiers between 1862 and 1930. In this, the average temperature of people born earlier was higher than that of people born later. Two other data collected between 1971 and 2017 also showed the same trend of decreasing temperature. This indicates that the decline was not just due to old thermometers. What 4 things change body temperature? Is it correct to consider 37 degrees as normal temperature? After new research, questions have been raised on considering 37 degrees Celsius as the only standard of normal temperature. The new average temperature figures have also found a place in some medical books and medical databases. However, experts say that a person’s health should not be judged by just one reading. It is also important to keep in mind the age, time of day and general condition of the person. Body temperature can vary from person to person and at different times of the day. ————————- Read this news also…. Hosting handover did not happen for the first time in G20: South Africa was angry over Trump not coming, America said – it was not done right. The 20th G20 summit in South Africa ended without a formal handover on Sunday. South African President Cyril Ramaphosa did not hand over the gavel (hammer, the symbol of presidency) to any American official. Read the full news…
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इंसान का शरीर धीरे-धीरे ठंडा पड़ रहा: अब 37 डिग्री नहीं रहा सामान्य तापमान, 150 साल में बदल गया इंसानी शरीर
