What do experts call the gradual drop in body temperature?

As we all know, mammals are homeotherms, and homeotherms have a stable metabolism and are able to move very freely in both high and low temperatures.

In hot weather, it can dissipate heat by perspiration, and in low temperatures, it can consume body fat to obtain heat. Humans are one such mammal.

Under normal conditions, the human body temperature is 37°C, which is currently accepted belief.

Anyone who has ever used a thermometer will notice that there is a clear mark (usually red) at 37°C on the thermometer, which tells us that if the mark is exceeded, then something is wrong with your body.

The body temperature of 37°C is formed through a long period of human evolution, which is the result of a long-term game with microorganisms, and this degree is the most suitable for human survival.

Once the body temperature exceeds 40°C, there is a big problem and it is life-threatening. If the baby has a fever and does not take it seriously, the brain may burn out. It's pretty scary.

If the body temperature is lower, the person's immunity will decrease, the metabolism will be reduced, the vitality will be poor, the brain will not be able to function, and so on.

But one study revealed that over the past century, human body temperature has become increasingly low under normal conditions.

It was true that the human body temperature was 37 at one time, but after the 19th century, the body temperature generally dropped.

In 2000, researchers at Stanford University in the United States began to measure and record the body temperature of the human body, and compared it with the temperature records of soldiers who had previously participated in the American Civil War.

The comparison found that the person's body temperature dropped from the previous about to about .

Dr. Julie Parsonnet, a professor of medicine at Stanford University, said

Our body temperature is not the same thing as people's perception, "human normal body temperature is something that we have always thought is wrong. ”

Julie Pasonnet also said:

Biologically, we are not the same thing as we were in the past. The environment in which we live has changed, including indoor temperatures, the microbes we are exposed to, and the food we are able to access. All of this means that although we don't think humans have changed in any way through evolution, we have actually changed.

Physiologically, we're actually in constant flux. ”

Why does the body's body temperature drop?

Scientists believe it may have something to do with the diet and lifestyle of humans.

Most modern humans are in a sub-healthy state, with high daily pressure, irregular diet and rest, and no time to exercise.

In addition, the quality of the earth's atmospheric environment is declining year by year, which has led to a decrease in human immune function, so the body temperature has also decreased.

It is believed that although the body temperature of the human body has only dropped, it is still necessary to pay attention to it.

Because the body's body temperature drops, the body's immunity also decreases, and when the body's body temperature drops1, the body's immunity will drop by 30%.

As soon as immunity decreases, humans are more likely to be attacked by viruses, riddled with diseases, and even suffer from cancer, so if you don't pay attention to it, it will lead to irreversible consequences in the future.

A drop in body temperature means that immunity is also down. When our body temperature is high, the blood flow is fast, and the white blood cells quickly detect the virus in the body, and the body temperature drops, and the work efficiency of the white blood cells is low.

The quality of the earth's atmospheric environment is declining year by year, which leads to a decrease in people's immune function, so the body temperature is also reduced. It also means that our immunity is weakened, which greatly increases the incidence of viral bacterial infections and cancer.

It shows that the instruments used to measure human body temperature are becoming more and more advanced; In the past, because the body temperature measurement instruments developed by human beings were not as accurate as they are now, the human body temperature was also around 37.