How death occurs from hypothermia Bashny.Net

Imagine yourself a frosty winter night in the car in a vast snowy expanses somewhere in Siberia. You decided to get from one place to another. To go only a few tens of kilometers, and soon you will be meeting with friends. But suddenly a sharp turn, the car enters, and here she is, lying on her side in the snow. You got out unharmed, but on the street -35, and no one around. Even if you know the way to get such frost you need. At first you are slightly flushed, but after 15-20 minutes, the temperature returns to normal 36,6, and then continues to fall about a degree in about 30-40 minutes. That's what will happen to your body next.
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36.6 – 35 degrees When the body temperature reaches 36 degrees, the muscles around your neck and your shoulders will start to shrink — this is called predatorily muscle tone. Your receptors send a signal to the hypothalamus, which in turn, gives the command to narrow the entire network of capillaries on the surface of your body. Feet and hands so it begins to ache from the cold. 45 minutes later the temperature drops to 35 as you enter the area of light exposure. Shakes you pretty much already is a natural reaction of the muscles, which begin to shrink more and more, to make the body more heat.
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35 32 degrees An hour had passed. You haven't been enveloped in panic, but the cold makes enzymes in your brain to work less efficiently. With every degree that drops the body temperature after 35, the rate of metabolism in the body falls by 3-5%. After level 34 degrees you start gradually to lose her memory and mind. Glancing at his watch, already after half a minute you can't remember numbers. You will hardly be able to go any longer a considerable distance. You fall into the snow and throw back his head. The heat from your body continues to go. Below 33 degrees there comes a state of apathy, in a 32 — stupor.
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32 — 30.5 degrees All of you in the area of extreme hypothermia. In the 31 degree throws your body attempts to warm itself by shivering. The blood thickens like butter in a frozen engine, the oxygen consumption — an indicator of your metabolic rate drops by more than a quarter. The kidneys, meanwhile, are working non-stop to cope with the excess fluid, which is squeezed constricted blood vessels in your extremities. Somewhere between 31 and 30 degrees you lose the ability to recognize the face of a loved one that suddenly comes to your aid.
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30.5 — 29.5 degrees The temperature dropped to 30. On the cartoons, which are the apartments most of us, even there is no such division on the scale. In this state, the electrical impulses that send chilled nerve endings on your heart become arrhythmic. The heart pumps approximately two-thirds the usual amount of blood. The lack of oxygen and slowed metabolism may cause visual and auditory hallucinations. At about 29.5 degrees, death occurs from hypothermia. And in a painful attack people tend to take their clothes off. Because of this phenomenon called "paradoxical undressing" of those who freezes in cities is often confused with victims of sexual violence. The exact explanation of this phenomenon is not, but the most logical explanation is that just before loss of consciousness constricted blood vessels near the surface of the body suddenly expand and create a sudden influx of heat to the skin, and man if it begins to burn.

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The salvation of supercooled In fact, every year many victims of hypothermia die from the "shock from overheating" in the process of salvation, when constricted capillaries dilate all at once at one point, thus causing a sharp pressure jump. Even the slightest movement can cause severe spasms of ventricular fibrillation in the heart muscle much the person. In 1980, 16 Danish fishermen were rescued after a boat crash and one and a half hours in the icy water of the North sea. Coming down from the rescue ship, they went to the school to drink hot drinks, and immediately died. All 16 people.

At extremely low temperatures the human body as it is preserved, greatly slowing the internal processes. Many people found the person seem dead at first glance. The body can exist in this state for hours, and withdraw it from him is very carefully and gradually.

Source: dnpmag.com/2015/01/13/kak-nastupaet-smert-ot-pereoxlazhdeniya/