As the global climate warms , the earth may become a high-temperature planet in the future, and the surface temperature will no longer be suitable for human habitation.
The earth becomes a "fireball"
There are also studies showing that in the future the earth will be covered by ice and snow, with temperatures as low as more than one hundred degrees Celsius below zero.
What may be waiting for humans is extreme high temperature or low temperature environment. At this time, some people will be curious. From a scientific point of view, which one is more tolerable, freezing death or heat death?
Powerful humans
Humans are a kind of warm-blooded animals . Their own temperature is maintained between 36°C and 37°C. However, humans have strong adaptability and can survive even in environments of dozens of degrees below zero.
For example, the Inuit living near the Arctic Circle have existed in the severe cold for thousands of years. Not only have they not become extinct, but they have formed a unique Arctic culture .
The Inuit people living in the severe cold
The Inuit people rely on ice and snow accumulation houses to avoid the severe cold, hunt elk and other animal furs to keep warm, and store food in the summer for winter use. In order to adapt to the cold environment, they The Inuit left no stone unturned.
In addition to the clever minds of the Inuit , human beings themselves also play a vital role in regulating temperature. When in a cold environment, the body will absorb all heat to ensure that the core temperature reaches about 36 degrees Celsius. .
When you are in a hot environment, your body will release heat in various ways to lower your body temperature.
The temperature of various parts of the human body
Of course, if the outside temperature is too high or too low, the body's temperature control will naturally be negligible.
So when you are in an ultra-high temperature environment or an ultra-low temperature environment, how does the human body's change ?
Living in high temperature
When the temperature in the environment exceeds 40°C, the body will receive the overheating signal , and spread this information to various organs in a timely manner to regulate the temperature.
Among them, the skin plays an irreplaceable role of . The skin takes away the excessive temperature in the body through the evaporation of a large amount of sweat. When the temperature is not higher than the body temperature by 5℃ to 10℃, the effect of this adjustment is still obvious. .
The continuous sweat will take away the temperature at the same time, it will also take away the moisture in the body. If effective replenishment is not obtained, dehydration will soon occur.
At this time, the human body may experience symptoms such as dry mouth , dizziness, weakness in limbs, etc. In severe cases, it can lead to accelerated heart rate, hallucinations, coma and other phenomena.
Don’t take high temperature seriously
As the temperature rises, the external temperature has far exceeded the temperature that the body can control, the body’s regulatory system gradually loses control, accompanied by a significant increase in body temperature, sweat Glandular dysfunction.
Human beings will still feel swollen at this stage, as if they are a balloon filled with hot air.
Beware of heatstroke in hot weather
This temperature will eventually be transmitted to the human head, causing damage to the nerves in the head. When a large amount of tissue proteins in the brain are decomposed, it will affect the regulatory function of the nerve center .
The brain's judgment of the external information may not be transmitted. The human body may even not "feel" heat because it cannot receive the information transmitted by the brain.
The brain is the "central processing unit" of the human body.
If you can't feel it, it doesn't mean it doesn't exist. The damage of the body caused by high temperature will not reduce , but will become more severe. After
, some organs and tissues in the human body begin to stop working, and the blood circulation in the body cannot spread to the whole body, leading to death.
This process of heat death will be long and painful , and humans can even clearly feel that their lives are declining.
That feeling is simply making life worse than death.
The process of heat death is painful and terrifying
If a human being is suddenly placed in a high temperature environment of
Someone once conducted a human body high temperature resistance test. The results showed that humans can only stay in an environment of 100℃ for half an hour.
Of course, the test is conducted in a specially designed temperature room. If it is in water, the active movement of water molecules can quickly transfer the temperature to the human body, so that it will not take long before the temperature is "cooked".
boiling water
In comparison, what is the process of freezing to death ?
Low temperature and severe cold
Compared with high temperature, the low temperature range that humans can withstand is much smaller. Without the help of external conditions, the ultimate low temperature that ordinary humans can withstand is 0℃.
Below the normal temperature, if humans are naked without any measures to keep warm, blood circulation will soon become blocked, and at the same time, the activity of cells in the body will gradually weaken.
In the universe, the range of low and high temperature values is also extremely unfair. The highest temperature was during the Big Bang period, and the temperature generated in an instant could reach a trillion billion degrees Celsius.
The Big Bang produced all matter
But theoretically, the lowest temperature in the universe is only
This is because the molecules at absolute zero no longer move , have no kinetic energy, and the internal energy has reached the minimum value.
The lowest temperature currently recognized by humans in the universe is only minus 272 degrees Celsius, and absolute zero can only be within the theoretical value .
Back to the topic, in the face of low temperature, the process of human beings being "frozen to death" by and is also gradual.
Perhaps it is more terrifying to feel that death is coming.
People's freezing to death is the process of heat loss in the body. Death will not come until the body's core temperature cannot maintain the normal operation of body functions.
At the very beginning, "frostbite" will appear in parts of the human body, which is caused by poor blood circulation.
What is different from high temperature is that humans can use their subjective initiative to increase heat for the body, such as doing exercise.
Life lies in exercise
Mobilize the active of cells throughout the body through muscle movement, allowing the cells to remain "awake" in a low temperature environment.
However, the heat generated by exercise is limited after all. When the temperature continues to drop, the effect of exercise becomes very small.
Some parts of the body began to slowly lose consciousness , and the heart rate gradually decreased.
After a period of time, people in this state will feel that their bodies slowly "get hotter" .
It is not that your body actually produces heat, but that the human temperature regulation center is disordered, resulting in errors in the signals transmitted to the brain.
At this time, the brain operation becomes inflexible, and the received signals are fed back to the body parts at will. To put it simply, it is an illusion.
There is an illusion, which means that human beings are not far away from the gate of hell . Similarly, after the body organs stop functioning, human vital signs also gradually disappear.
It is worth mentioning that the state of hypothermia in humans does not necessarily occur in low temperature environment .
For example, when people get rained on in the spring and autumn seasons and do not change into dry clothes in time, the evaporation of the rainwater from the body will take away most of the body's heat, and then hypothermia will occur.
Hypothermia
In news reports, some people even suffer from hypothermia in summer. The reason is that they fail to deal with the moisture in their bodies in time.
Therefore, it is not unreasonable to laugh at the "crematorium" after the rain.
Is it better to die from heat or to death from freezing?
From a comprehensive comparison, whether it is death by freezing or death by heat, it is a very painful process, but if you have to choose one of them, I believe that the process of death by freezing is relatively easy Said it would be better to use .
After all, you don’t have to suffer the pain of water loss during the process of freezing to death. You must know that water is the source of life, and the pain of lack of water may be greater than the pain of cold.
And after freezing and losing consciousness , there was not so much pain.
From the actual situation, although there are very few cases of freezing to death nowadays, in ancient times, it was not uncommon for poor people to freeze to death.
Because many civilians cannot afford to buy thermal insulation tools, they often "sleep forever" on cold winter nights without much pain.
Heat death is different. Human beings will struggle to wake up from their sleep and experience the torment of "hell fire". From this aspect,
once again proves the "comfort" of compared to .
Frozen to death will not change people beyond recognition
In real life, the absolute majority of people will not have any contact with death from heat or cold. Instead of thinking about these ethereal things, it is better to live in the present.
Recognize the importance of your body . No matter where you are, you must pay attention to keeping warm and dissipating heat. Only by having a healthy body can you live longer.
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