Almost two centuries ago, experts were able to calculatenormal human body temperature, which was about 37 degrees Celsius. For many years, this figure was considered the “normal” body temperature for a healthy person, as an indicator of the positive state of his body. However, could the norm shift for a modern person under the onslaught of many factors, among which the state of the environment and even climate change may appear? Asked by this question, scientists conducted a series of studies, the results of which may surprise even the most inveterate skeptic.
Average human body temperature
Because every organ in our bodythere is an individual optimal temperature level, whose range can vary up to several tenths of a degree, body temperature is not the same everywhere. So, for example, by measuring the temperature by the oral method (in the mouth), a healthy person gets 37 degrees Celsius, and by measuring the temperature axially (in the armpit), he gets the same 36.6 degrees. Experts note that the average body temperature is always influenced by many factors, among which clearly stand out age, height, gender and weight, as well as the level of human activity, the type of diet and even weather conditions. In addition, scientists also revealed certain fluctuations in body temperature, which can shift by 0.2 degrees Celsius during the day. That is why the range of generally accepted norms is quite flexible and suitable for each organism, varying from 35.5 to 37 degrees Celsius.
See also: Low temperature accelerates cancer development
Why does the average temperature of the human body fall?
According to an article published on the siteLivescience.com, the human body maintains a relatively stable temperature level in order to maintain the functioning of organs and vital systems, as well as to prevent the development of various fungal infections. After studying the statistics of average temperatures of the human body, scientists came to an unexpected conclusion: the body temperature of a modern person is different from the temperature indicators of his ancestors. Why is this happening?
A team of scientists studied data in whichinformation from the time of the 1970 American Civil War and the early 2000s was taken into account. Thanks to the combined information, scientists were able to collect 677,000 data on measurements of body temperature. In the course of the study, scientists revealed a natural decrease in temperature indicators, revealing that approximately every decade the temperature decreases by 0.02 degrees Celsius. Thus, men born in the 2000s have a lower body temperature of 0.58 degrees Celsius than men born in the early 1800s. Incidentally, this trend affected not only men, but also women. So, the fair sex, who were born in the 2000s, have an average body temperature lower by 0.32 degrees Celsius than women born in the 1800s.
A team of scientists who noted a steady declineThe average temperature of the human body also took into account the possibility of data distortion due to the improvement of thermometry technologies, by examining a single data set. However, as a result of further research, data proving the tendency of the “cooling” of the human body were confirmed regardless of the types of thermometers that were used in a single historical group.
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Scientists suggest a similar trendA decrease in average body temperature can have several causes. One of the most likely is a reflection of the historical decline in infectious diseases in humans, including excessive inflammation in his body due to the effects of a large number of pathogenic microorganisms. The second most probable reason could be a decrease in the intensity of hard physical labor, as well as the establishment of favorable living conditions. Despite the results of studies that were conducted in the United States and Great Britain, this trend is not observed in some countries.