Shilin weather

The Yellow River Shilin Mountain Marathon 100 km cross-country race started, but it encountered extreme weather such as strong wind and cold air, and 2 1 participant was killed. According to a survivor, local shepherd uncle Zhu Keming saved himself and five other players.

Lending a helping hand, the relevant media contacted Zhu Keming. He himself said it was windy, rainy and hail, and there was smoke on the mountain. Visibility is less than 20 meters, and this extreme weather often occurs in the local area. Zhu Keming believes that it is very common for him to save people, but when he meets them, he lends a helping hand like an ordinary person.

Cause of the accident After the accident, professional cross-country experts analyzed the cause of the Gansu Marathon accident. He said that the overall risk of holding the competition in the sub-plateau area is already high.

At the same time, the professional runners in this competition lack warm clothes in pursuit of lightweight equipment, and the organizing Committee of the competition does not force jackets, which is also the root cause of this tragedy.

How to deal with hypothermia The normal body temperature of the human body is 37℃. Accurately speaking, the temperature in the core area is about 37℃, and the core area mainly refers to the brain, heart and lungs. Even if fingers and toes are frozen below 0℃, it is not necessarily fatal, but once the temperature in the core area (brain, heart and lungs) drops, it is called "hypothermia" and will be fatal. Generally speaking, it is very dangerous for the core temperature to drop below 32℃. Only 5℃ lower than the normal 37℃.

The temperature, humidity and wind influence of the external environment are the key factors that cause our body to lose temperature. The bad extreme weather is often low temperature, strong wind and high humidity. It is not surprising that people can cause low temperature in such an environment.

Even in summer, the temperature difference between morning and evening in many places or local areas is particularly large. In addition, the marathon will increase the sweat and humidity of the human body, and the wind will increase, which will easily lead to excessive heat loss and lower temperature.

It has something to do with temperature, but it has more to do with humidity. Humidity amplifies the somatosensory temperature difference. It is not too cold when the relative humidity is below 30% at MINUS 20 degrees in the northeast, but it is even colder when the relative humidity is above 70% at five degrees in the south. If you are wet, it will be colder. In fact, the concept of temperature loss is not accurate, it should be heat loss, which leads to the loss of heat in the human body and the human body will cool down for a long time.

Within a constant range, the body temperature can carry out normal activities and ensure the normal operation of the human body, such as thinking and action, especially the core parts of the human body, such as the heart and lungs. When the added energy in the core area is lower than the lost energy, the temperature in the core area will be lower than the normal temperature, thus limiting the cardiopulmonary activity, and then causing the human body to lose consciousness until death.

At the beginning of Gansu Marathon, because the runners wore shorts and short sleeves, they began to tremble before starting, but they didn't lose their body temperature at this time, but they would get colder and colder soon after running. When they are soaked and the wind blows, they will enter the first temperature loss stage.