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23 people were trapped in the collapse of houses in Changsha, Hunan Province
On April 30, the dispatching and disposal headquarters at the scene of the collapse of self built houses in Changsha, Hunan Province held a press conference to introduce the rescue and trapped personnel. It is reported that 23 people were trapped after the accident, and 5 people have been rescued. In addition, 39 people lost contact, and relevant rescue and emergency disposal work is under way.
Shanghai Xinguan vaccine was vaccinated 27.14 million times. Experts said that the earlier it was va…
The National Health Commission announced yesterday that as of June 2, 31 provinces (autonomous regions and municipalities directly under the central government) and Xinjiang production and Construction Corps had reported 704.826 million doses of neocoronavirus vaccine. At the same time, on the 2nd day, the vaccination volume reached a new high of 22.918 million doses. From 600 million doses to 700 million doses, it takes only 5 days. As of June 2, the vaccination of Shanghai Xinguan vaccine e...
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The 19th China joy in 2021 will be held in Shanghai New International Expo Center from July 30 to August 2. Following the trend of the times and keeping pace with the times, 2021chinajoy flies together online and offline, and the second ChinaJoy plus online carnival is launched! Cooperate with major domestic mainstream BtoC online traffic platforms to build, help exhibitors maximize product promotion and brand exposure, and it is expected to reach hundreds of millions of users! The second Chi...
Share Dialog
Share Dialog
Audit expert: Gu Haitong
Beijing Tongren Hospital of Capital Medical University
Deputy chief physician of respiratory medicine
In our cognition, especially since the epidemic, taking body temperature has been accompanied by a series of activities such as going to work, getting off work, eating and shopping.
It seems that since school, the teacher has been saying that human body temperature is 37 ℃ under normal conditions. But in fact, in recent years, more and more researchers have found that human normal body temperature (core temperature, non body surface temperature) has been declining.
Our bodies have been getting cold
The inherent concept of body temperature at 37 ℃
The history of human body temperature recording begins in 1851. At that time, a German physician named Carl windrich collected the axillary body temperature data of 25000 patients. After data sorting, it was found that the normal body temperature of human body was about 37 ℃, so 37 ℃ was determined as the normal body temperature of human for the first time. After nearly 200 years, It has gradually become the most widely known common sense in our life.
Carl windrich
If calculated according to the standard body temperature of 37 ℃, experts generally believe that an adult’s body temperature, if it reaches 37.7 ℃, is considered sick and has a fever.
However, this statement is not accurate now. In life, we often feel eye pain and discomfort and forehead fever, but our body temperature is below 37 ℃. Even some people will have obvious fever symptoms at 37.5 ℃, which may cause dizziness, fatigue and diarrhea. It can be seen that the standard body temperature is not suitable for everyone.
So where is the problem?
The temperature keeps changing?
According to the long-term statistical research of scientists, the main reason is that the human core temperature is declining. In modern life, someone’s temperature is at 36.5 ℃ all year round, so even if the measured temperature is 37 ℃, he will feel feverish and uncomfortable.
The decline of human body temperature is not unnoticed. As early as the SARS period in 2003, the number of times we measure our body temperature became very frequent. When measuring the axillary temperature, we sometimes have a low temperature of 35 ℃ or even 34.7 ℃. The standard 37 ℃ has been difficult to appear in daily life, and some people even think that the thermometer is broken.
A patient’s temperature record
Stanford University conducted a survey on the problem of human hypothermia. Researchers found more than 90000 temperature reports of American soldiers after 1800, and compared these temperature data with the temperature status investigated by the research team. The results showed that the average temperature of men fell from 37.2 ℃ to 36.6 ℃, about 0.59 ℃, The body temperature of American women is no exception. The existing statistics show that it has dropped by 0.32 ℃.
That is, since the 19th century, the average body temperature of adults has been falling continuously. The average body temperature of human beings will drop by 0.03 ℃ every ten years and 0.4 ℃ in less than 200 years, from 37 ℃ to 36.6 ℃.
Why has human body temperature been declining in 150 years?
Scientists explain that human society is undergoing unprecedented changes, which are reflected in everyone’s physique and are closely related to our way of life in the past 200 years.
Human’s 37 ℃ was originally designed to use higher temperature to resist the infection of deadly fungi and viruses in the body. This is also the essential reason for fever.
However, with the development of technology, the medical and health care and dietary environment of human society have been greatly improved. Compared with ancient times, today’s people are rarely infected with malaria, tuberculosis and other diseases because of food. Even if unfortunately infected with relevant pathogens, we will quickly cure through drug treatment to reduce the chance of fever, thus reducing the temperature of the human body.
At the same time, great changes have taken place in our living conditions. In the past, in the middle of winter and December, it was cold and cold, and we didn’t have enough food and clothes to keep warm. The body’s temperature regulation central system under this condition will be very “diligent”. But now we can use air conditioning, heating and electric blanket to raise the ambient temperature and eat high calorie food to supplement the required energy; When it is hot, the ubiquitous air conditioning makes the temperature regulation center of the human brain no longer sensitive to the external ambient temperature. Our own self-regulation function also becomes “lazy” and the body’s heating capacity decreases.
In order to prove the influence of current lifestyle on human body temperature, scientists found indigenous tribes that still rely on nature for primitive hunting and life. The results showed that the average body temperature of people living in primitive life is generally higher than that of modern people. At the same time, scientists also found that after being infected with the virus, the body metabolism of aborigines will significantly accelerate, resulting in a rise in body temperature.
In contrast, our chances of contacting microorganisms and bad weather are reduced, and our chances of immune cell training are greatly reduced. In the early stage of the disease, we will take special drugs and anti-inflammatory drugs to alleviate the disease. In this way, the chance of fever is sharply reduced, so the normal body temperature of human beings generally shows a downward trend.
Modern people still lack exercise, the basic metabolism will decline, the energy consumption will decrease, and the basic body temperature will also drop.
Of course, there may also be the great pressure of modern life. Under relatively high pressure, the human body will secrete cortisol hormone, decompose muscle and promote fat storage. The metabolic capacity of the human body decreases and the body temperature decreases.
Should the standard of fever change?
According to statistics, most people’s normal body temperature has dropped to 36.5 ℃. Is the original 37.3 ℃ fever temperature line still applicable?
The current statement is not unified, which brings many difficulties for doctors to judge the condition. Originally, doctors could know the condition by measuring the body temperature, but now they can only rely more on the patient’s self-report, so nurses often record the patient’s average body temperature when they are hospitalized, so as to judge the fever when the body temperature fluctuates.
In addition, the constant high temperature of the human body is to resist diseases. Does that mean that the body temperature drops and the human immunity also drops?
Body temperature is linked to the basic metabolic rate. For every 1 ℃ rise in body temperature, the basic metabolism will increase by 13%. Hypothermia may mean poor metabolism. When the body temperature is high, the blood flow speed is fast, and the white blood cells can be more rapid
Audit expert: Gu Haitong
Beijing Tongren Hospital of Capital Medical University
Deputy chief physician of respiratory medicine
In our cognition, especially since the epidemic, taking body temperature has been accompanied by a series of activities such as going to work, getting off work, eating and shopping.
It seems that since school, the teacher has been saying that human body temperature is 37 ℃ under normal conditions. But in fact, in recent years, more and more researchers have found that human normal body temperature (core temperature, non body surface temperature) has been declining.
Our bodies have been getting cold
The inherent concept of body temperature at 37 ℃
The history of human body temperature recording begins in 1851. At that time, a German physician named Carl windrich collected the axillary body temperature data of 25000 patients. After data sorting, it was found that the normal body temperature of human body was about 37 ℃, so 37 ℃ was determined as the normal body temperature of human for the first time. After nearly 200 years, It has gradually become the most widely known common sense in our life.
Carl windrich
If calculated according to the standard body temperature of 37 ℃, experts generally believe that an adult’s body temperature, if it reaches 37.7 ℃, is considered sick and has a fever.
However, this statement is not accurate now. In life, we often feel eye pain and discomfort and forehead fever, but our body temperature is below 37 ℃. Even some people will have obvious fever symptoms at 37.5 ℃, which may cause dizziness, fatigue and diarrhea. It can be seen that the standard body temperature is not suitable for everyone.
So where is the problem?
The temperature keeps changing?
According to the long-term statistical research of scientists, the main reason is that the human core temperature is declining. In modern life, someone’s temperature is at 36.5 ℃ all year round, so even if the measured temperature is 37 ℃, he will feel feverish and uncomfortable.
The decline of human body temperature is not unnoticed. As early as the SARS period in 2003, the number of times we measure our body temperature became very frequent. When measuring the axillary temperature, we sometimes have a low temperature of 35 ℃ or even 34.7 ℃. The standard 37 ℃ has been difficult to appear in daily life, and some people even think that the thermometer is broken.
A patient’s temperature record
Stanford University conducted a survey on the problem of human hypothermia. Researchers found more than 90000 temperature reports of American soldiers after 1800, and compared these temperature data with the temperature status investigated by the research team. The results showed that the average temperature of men fell from 37.2 ℃ to 36.6 ℃, about 0.59 ℃, The body temperature of American women is no exception. The existing statistics show that it has dropped by 0.32 ℃.
That is, since the 19th century, the average body temperature of adults has been falling continuously. The average body temperature of human beings will drop by 0.03 ℃ every ten years and 0.4 ℃ in less than 200 years, from 37 ℃ to 36.6 ℃.
Why has human body temperature been declining in 150 years?
Scientists explain that human society is undergoing unprecedented changes, which are reflected in everyone’s physique and are closely related to our way of life in the past 200 years.
Human’s 37 ℃ was originally designed to use higher temperature to resist the infection of deadly fungi and viruses in the body. This is also the essential reason for fever.
However, with the development of technology, the medical and health care and dietary environment of human society have been greatly improved. Compared with ancient times, today’s people are rarely infected with malaria, tuberculosis and other diseases because of food. Even if unfortunately infected with relevant pathogens, we will quickly cure through drug treatment to reduce the chance of fever, thus reducing the temperature of the human body.
At the same time, great changes have taken place in our living conditions. In the past, in the middle of winter and December, it was cold and cold, and we didn’t have enough food and clothes to keep warm. The body’s temperature regulation central system under this condition will be very “diligent”. But now we can use air conditioning, heating and electric blanket to raise the ambient temperature and eat high calorie food to supplement the required energy; When it is hot, the ubiquitous air conditioning makes the temperature regulation center of the human brain no longer sensitive to the external ambient temperature. Our own self-regulation function also becomes “lazy” and the body’s heating capacity decreases.
In order to prove the influence of current lifestyle on human body temperature, scientists found indigenous tribes that still rely on nature for primitive hunting and life. The results showed that the average body temperature of people living in primitive life is generally higher than that of modern people. At the same time, scientists also found that after being infected with the virus, the body metabolism of aborigines will significantly accelerate, resulting in a rise in body temperature.
In contrast, our chances of contacting microorganisms and bad weather are reduced, and our chances of immune cell training are greatly reduced. In the early stage of the disease, we will take special drugs and anti-inflammatory drugs to alleviate the disease. In this way, the chance of fever is sharply reduced, so the normal body temperature of human beings generally shows a downward trend.
Modern people still lack exercise, the basic metabolism will decline, the energy consumption will decrease, and the basic body temperature will also drop.
Of course, there may also be the great pressure of modern life. Under relatively high pressure, the human body will secrete cortisol hormone, decompose muscle and promote fat storage. The metabolic capacity of the human body decreases and the body temperature decreases.
Should the standard of fever change?
According to statistics, most people’s normal body temperature has dropped to 36.5 ℃. Is the original 37.3 ℃ fever temperature line still applicable?
The current statement is not unified, which brings many difficulties for doctors to judge the condition. Originally, doctors could know the condition by measuring the body temperature, but now they can only rely more on the patient’s self-report, so nurses often record the patient’s average body temperature when they are hospitalized, so as to judge the fever when the body temperature fluctuates.
In addition, the constant high temperature of the human body is to resist diseases. Does that mean that the body temperature drops and the human immunity also drops?
Body temperature is linked to the basic metabolic rate. For every 1 ℃ rise in body temperature, the basic metabolism will increase by 13%. Hypothermia may mean poor metabolism. When the body temperature is high, the blood flow speed is fast, and the white blood cells can be more rapid
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