Santa Clara:  A 16-year research study in the South American country of Bolivia has revealed that the body temperature of a healthy person is not only decreasing but also decreasing continuously.

Interestingly, the study was conducted on tribals living in the Tsimane area of ​​Bolivia. Most of them are poor herdsmen or farmers who have barely access to basic necessities of life.

The study explored the body temperature records of 5,500 adults of the Simani tribe over the past 16 years, which are being regularly noted under a long-term local project, the Simani Health and Life History Project.

Although previous research in the United Kingdom and the United States in 2017 and 2019 had shown the same thing, it was then thought that both countries were developed where the general public had better health care and a relatively clean environment. Due to the fact that they have very little to face diseases.

However, research on the Semani tribes has confused the issue. Experts found that the body temperature of healthy adults in the Simani tribes has been falling steadily for the past 16 years, which has dropped to 97.7 degrees Fahrenheit today.

Today, the average body temperature of a healthy adult is considered to be 98.6 degrees Fahrenheit. In this context, the body temperature of the Semen tribes has been declining at an annual rate of 0.056 degrees Fahrenheit for the last 16 years.

However, Dr. Michael Groen, the study's lead author and professor of anthropology at the University of California, Santa Barbara, says the decline in temperature began about ten years ago and continues to this day. The average drop in body temperature is 0.09 degrees Fahrenheit per year.

Why is this happening? Experts do not currently have an answer to this question.

To find out the answer to this question, it is necessary to go further and compile a detailed review of the average body temperature in different countries.

Note: This research is published online in the latest issue of "Science Advances" .