| About Temperament - From "Challenging the Limit" Mike. Stroud This book talks about the many factors that lead to death and their own physical changes in cold and hot weather. I have now excerpted some of the changes in the body in the absence of temperature and some measures. The article gives an example of a loss of temperature: The brief description is as follows: Michael. Colonel Kylie, an officer of the British Special Forces, was experienced and performed tasks in the mountains and hills in the winter. Later, due to the implementation of copywriting, his body was no longer strong, so he took part in the selection of new members of the Special Air Force. Colonel Kylie successfully passed a series of tests, leaving only the last arduous week. The last pass is the winter carrying more than 25KG backpacks through nearly 55 miles of mountain roads. That morning, Colonel Gillie had a rich English breakfast with fried eggs, sausages, tomatoes, and ham. (Note: What he ate had a great relationship with his later death!) The mountains they travel through are Mount Blaken. This is not a big mountain, but there is almost no vegetation. The day was very windy and heavy snow fell. The wind speed reached 60 knots, and the temperature dropped to minus 9 degrees. When this happened, it formed an air-cooled well below minus 50 degrees. Everyone felt that the first two or three hours were very difficult and that the sea level rose quickly. After 1,500 feet, the road is getting better and better. About five-thirty in the morning, Colonel Kylie finally encountered some students who avoided the rocks. He also encouraged the students to move on. Because Colonel Kylie had performed many missions to this mountainous area, and even in similar weather, he knew the roads every foot. In addition, he served as a mentor to deal with hazardous weather conditions and low temperatures. The blizzard never stopped the night. At nine in the morning the following day, people discovered Colonel Kylie’s body. His clothes and instruments were thrown around in disarray. Even the strongest and most professional people may be conquered by the cold. analyse as below: The death of an expert like Colonel Kieley is difficult to explain. In my opinion, the breakfast he ate before departure might be related to it. The traditional English breakfast has always been lack of carbohydrates, and after many days of hard training, his muscle carbohydrates are likely to be at a lower level. When he climbs up from a steep hill, the strenuous exercise burns all the carbohydrates in his body. When the glycogen reserves are used up, if he still keeps working and he needs carbohydrates, then when the sugar is in the blood, May decrease. In this case, he will slow down and reduce heat production. At the same time, his hypoglycemic condition will affect the control of his hypothalamus, causing him to shut down the physiological protection mechanism. When people are working in the cold, especially when walking in the mountains, the heat generation changes very much. It takes more effort to climb the mountain than to go down and walk on the flat ground. When you are climbing, you generate so much heat that your body will initiate heat dissipation to dissipate the heat. When you ascend to the top of the hill, you are often flushed, sweating, and your clothes are all in your Backpack and you can't use it. When you climb to some peak, or the summit of a mountain range, you do not need to move violently as the gradient changes, and the heat generation suddenly drops, and you enter the stage where heat is lost. At this time, your skin surface subcutaneous blood flow is not determined by the speed at which you climb, plus your clothes are drenched, do not want to stop to add clothes, your core body temperature will drop rapidly. Some of the experiments I participated in showed that when the body temperature is still high and the core body temperature drops rapidly, our body temperature regulation system will be in trouble. In the climate simulation room, my experiment imitated this situation. We made artificial windy and cold environments and selected volunteers. We made When our test subjects switched from high-intensity exercises to easier exercises, some people found it difficult to continue, and two or three people who were usually very strong had to give up because they felt uncomfortable. Although their skin temperature and core body temperature are rapidly dropping, their skin is still warm and their core temperature is still above normal. On the other hand, if they think of ways to continue and their core body temperature falls below the normal range, and their skin feels cold and no longer plays a role in keeping warm, their movement will still make them feel better. some. It is easy to imagine that if they are outdoors on the hill, some people will slow down so much that they will feel uncomfortable and even cause trouble to them. This is another explanation for Colonel Kylie's encounter. When he completed the rapid heating climb, he may become slow walking on the frozen summit. If the body cannot maintain core body temperature, there will be a series of things that happen when you are conscious or unconscious, depending on how cold you are. When the core body temperature just starts to fall, your consciousness tells you to feel cold, and this is A useful signal to prevent the situation from getting worse. It will make you actively looking for ways to improve your protection, such as walking around to generate heat, or leaving a cold environment. When you do this, your body will reduce the flow of blood under the surface of the body. And let you tremble. These reactions occur when the core body temperature is at normal 37 degrees or 34 degrees or 35 degrees at low temperatures, and they are usually enough to make things worse. You tend to make calorie compensation higher than you need, and you will eventually feel feverish. However, sometimes these defense measures are not enough and the cold will continue. In this case, there will be some rather strange responses. First of all, your thought process begins to stagnate. Some people may even become speechless and unable to communicate, while others may show madness. This change can be compared with drunkenness. If the situation becomes very bad, some further changes will even make recovery even more difficult. When the core body temperature is around 32 degrees or 33 degrees, the victims of hypothermia injury begin to walk unstable and paralyzed, and the mild temperament in the past becomes aggressive, perplexed, and even unconscious. Any idea to save yourself will disappear. Even if they start to undress, they will feel too hot. There is more and more information accumulated in the lower part of the hypothalamus, which erroneously explains this condition. It acts like an overheated body temperature, but in fact it is the opposite. At the same time, the hypothalamus closes off the trembling mechanism and the mechanism of blood flow to the skin. In this case, it will soon be in an irreversible situation. When a victim loses control of the hypothalamus, he or she enters a worse and worse cycle. At about 30 degrees Celsius, there is a coma that can cause some death-causing temperatures. When people lose consciousness and feel powerless, the protection mechanism is turned off. It will take a long time before death occurs. When the blood temperature drops to about 24 degrees, the heart will stop beating. Every year people die because of this reason, and even places like Britain that are not particularly cold. In this case, it is mainly to increase the insulation effect of clothes. Then, you will come to a more critical decision: Is it going to continue doing so? Still managed to keep the cold person in balance between heat generation and heat loss. You must ensure that his calories continue to increase while at the same time minimizing his calories. But these two goals are difficult to achieve at the same time. If you want to stay or rest in place, you need to ensure that everyone’s heat loss is less than the amount of heat he is about to produce that is just enough to keep warm. Ideally, one should carry enough protective equipment to get rid of the worst possible situation. In the winter, you should choose a sheltered camp that shelters the wind, and you must not rely solely on those thin, slack-filled survival sleeping bags or blankets. Because these components are lighter and the backpacks are small, people are willing to bring them, but when they are difficult, they are much less effective than a really good plastic bag. There is also the preparation of hot drinks in advance, they will rejuvenate your metabolism, and more importantly, they will help you get enough fuel for the muscles, so that you can intermittently exercise hot drinks can also avoid hypoglycemia. (From original pages 169 to 173) (changes and deletions) |
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