The human body temperature is around 37 degrees, why does the temperature feel particularly hot when

First of all, we know that man is a homeothermic animal, and he will keep his temperature stable at different temperatures. You must know that the higher the temperature, in fact, to a certain extent, means that the internal activities of the human body are more intense. So why don't humans keep it at a low temperature to save energy and keep themselves alive longer?

And there are also some studies that show that the more active the human body is, the faster the rate of oxidation will be. And oxidation has a certain relationship with the lifespan of our human beings. <>

In fact, in the process of tens of millions of years of evolution, a body temperature of 37 degrees meets the needs of human growth and development. We all know that the food we eat needs to be broken down before it can provide us with energy, but the decomposition requires some special proteins and even some beneficial bacteria. These bacteria need a suitable temperature in order to exert the maximum divergence effect and provide us humans with sufficient energy.

If our body temperature is too high or too low, they can't do efficient work, so in order to ensure that the energy is better broken down and used, the human body chooses 37 degrees as our body temperature. <>

But since the human body temperature is 37 degrees, why do we feel hot when the outdoor temperature is 30 degrees? First of all, we feel that this is not a simple ** feeling, but comes from within our body. When we exercise vigorously, the body produces a lot of heat, because when we exercise, we call in more energy, and energy produces heat when it breaks down.

At this time, it is necessary to sweat to remove some of the heat. <>

If the temperature is relatively high, the heat exchange between the human body and the outside world will actually slow down. In layman's terms, you will find that when you also let a glass of boiling water cool in the summer, it will take much longer than in the winter. This is because the temperature difference in summer is smaller than that in winter.

Therefore, when summer comes, as the increase in ambient temperature, it is not conducive to our heat exchange with the outside world, and we will feel the body heat at this time.

Because our human body is dissipating heat, the temperature is higher than 30 degrees, and the human body will dissipate heat very slowly, so the heat gathered in the human body cannot be discharged in time and will be very hot.

When the human body temperature is 37 degrees, it is just the temperature when the human body reaches the balance between heat production and heat dissipation, and when the ambient temperature is 30 degrees, the speed of the human body to dissipate heat will slow down, the balance will be destroyed, and it will feel particularly hot.

Because the temperature of the human body is high, the outside temperature can quickly dissipate heat if the outside temperature is low, but when the temperature is higher than 30°, the outside temperature is also relatively high, resulting in the human body dissipating heat very slowly, so it feels very hot.

First of all, it should be pointed out that there are several inaccurate temperature parameters in the main question, and the problem description is not entirely related, but greatly expands the content of the title, mainly related to the tolerance of the human body to the low temperature of the environment.

Therefore, these issues need to be presented separately.

<> several parameters of the "temperature" of the human body.

We usually say normal body temperature.

Yes 37 refers to the body's core body temperature, which is the temperature of the deep trunk and deep brain tissue.

Other peripheral superficial tissue temperatures are called peripheral temperatures; The temperature of the surface is called the temperature.

In general, humans are homeothermic animals.

This means that the core temperature fluctuates in a narrow range of around 37.

**Temperature varies greatly depending on exposure and location. In general, the ** temperature of the trunk is about 32 in the appropriate temperature environment (described below), while the temperature of the distal limbs (i.e., hands and feet) is much lower, generally around 28.

After a lot of scientific research, it has been found that the optimal temperature of the human body is 25, but it is not an absolute temperature.

This is related to humidity, air pressure, and many other factors.

The optimal temperature of the human body in summer is slightly higher than 25, that is, 26 28. When the temperature exceeds 32, the heat generated by the human body cannot be released in time, causing discomfort and mood swings.

In winter, the optimal temperature for the human body is 18 25 and the humidity is 30% to 80%. If the temperature is lower than 13, the heat dissipation rate of the human body will increase, so that the heat dissipation is greater than the heat production, and it will feel cold. For example, in a colder environment, we can visibly feel the temperature of our hands and feet, and it is also noticeably cold to the touch, while the temperature of the main trunk of the body is maintained at around 37 regardless of the environment in which we are, that is, although our hands and feet are greatly affected by changes in the environment, the trunk of the body is largely unaffected.

In fact, many people know that it is our thermoregulation.

The result of ** adjustment.

Under normal circumstances, the human body is above 36 degrees, or about 37 degrees, which belongs to the normal body temperature of the human body, and the human body temperature is mainly based on the internal body temperature. Because there are blood in the body, if there is a problem with the body, there is a fever.

Positive, lack of qi and blood.

The blood flow is not smooth, there are symptoms of fever or slightly lower temperature, and the change of normal body temperature directly affects the health of the person's body. The scientific basis is that the first measure of a person's body temperature is measured. Regardless of winter or summer, people's body temperature is basically normal.

If the winter is more than ten degrees below zero, there is no warm equipment, and people who are in good health should exercise more. Move your body without losing your life. If you are not in good health, you usually have a disease.

If you encounter more than ten degrees below zero, some will not last long. Frozen blood vessels. The blood is not smooth, the qi and blood are insufficient, and there is a danger to life at any time, and it will not last long to survive.

Because the human body needs to dissipate heat, this can maintain the balance of the body and allow the human body to function normally.

Because our body temperature is regulated, we will emit some heat, if the outside temperature is the same as our body temperature, we will not be able to better dissipate heat.

I think it's a matter of human perception, and human body temperature is determined by a person's body, so we must look at it rationally.

Because it is very normal for the outside temperature to be different from your own temperature, and if you live at the right temperature, the human body will feel very comfortable.

Because the human body is sentient, this situation will occur.

Human beings are homeothermic animals, and in order to maintain such a relatively constant temperature, they naturally need various ways to produce heat and dissipate heat.

When the ambient temperature is 37 degrees, theoretically the human body can maintain a constant temperature without exchanging heat with the outside world, but the human body itself is a body that constantly produces heat, and the human body must produce a certain amount of heat in the normal metabolic process, that is to say, if the ambient temperature is 37 degrees, the human body must dissipate heat to the outside in order to maintain a constant temperature.

So how does this heat dissipate?

Let's first understand the way of human body heat dissipation, the human body heat dissipation paths are actually quite many, but mainly through the heat exchange with the external environment, there are four ways to radiate, conduction, convection and evaporation, but which way is the main way, it depends on the environment at that time.

When the outside temperature is low, the human body radiates heat to the surroundings, and the lower the temperature, the faster it disperses. When the outside temperature is high, radiation heat dissipation can no longer play a role, so it can only rely on convection and evaporation. Convection heat dissipation requires air circulation, while evaporative heat dissipation requires sweating.

Back to the question just now, the external environment is 37 degrees, radiation and conduction heat dissipation do not work, then the human body either needs to blow a fan and rely on convection to dissipate heat, or it needs to sweat and rely on evaporation to dissipate heat. Of course, the feeling of sweating is not the best state of the human body, so it is not comfortable.

Our life experience and scientific research show that the human body is the most comfortable in the ambient temperature of about 22 degrees, and the heat generated by the human body can be dissipated in the most comfortable way, neither fast nor slow, which is why our air conditioning is generally adjusted to about 22 degrees in summer, and the heating is maintained at about 22 degrees in winter.

The human body is at a constant temperature, with a normal body temperature of about 36 degrees 5. This constant temperature needs to be adjusted by the human body to dissipate heat, keep warm, and absorb heat. When the outside temperature is lower than 18 degrees, it needs to be kept warm and heat absorbed.

When the outside temperature is above 22 degrees, heat dissipation is required, so the comfortable temperature of the human body is between 22 degrees and 25 degrees. If the outside temperature reaches 37 degrees, the human body feels very hot. If the humidity is high, the human body will feel particularly stuffy.

Because the temperature is not good for the human body to dissipate heat, the human body will sweat. Sweating on a sweltering day is difficult.

Some people say that in summer, popsicles will not melt when they are covered with quilts, and in summer, people will be cool when they wear cotton clothes. You try it and you know it's cooler and hotter.