What is temperature loss? What are the symptoms of hypothermia? How dangerous is temperature loss?

The marathon was held in Baiyin Mountain, Gansu Province. Due to sudden extreme weather, freezing rain, hail, strong wind and other bad weather occurred in some areas. Faced with the sudden drop in temperature, many contestants feel unwell and even lose their body temperature. Later, temperature loss claimed more than 20 lives, and it became a serious outdoor killer. At present, outdoor enthusiasts and the general public know too little about temperature loss. Loss of temperature belongs to accidental hypothermia and belongs to medical hypothermia syndrome. The clothes worn by marathon runners in the competition are not warm enough. Once you encounter extremely cold weather, your body cools down quickly, and you can't keep warm even if you exercise hard. In this way, the speed at which the body produces heat can't compare with the speed at which it dissipates heat. When the body temperature drops below 35 degrees, organ problems will occur, and if the temperature continues to drop, it will die.

First, the cause of temperature loss

Patients are usually caused in extremely cold environment, which will lower the body temperature to 35 degrees. Low temperature, the body produces too little heat, which can not meet the normal body function and health, leading to low temperature and organ abnormalities in the brain, heart and lungs, and further leading to death.

Second, the symptoms of hypothermia

Under normal circumstances, the cold atmosphere will activate the thermoregulatory center, so that the sympathetic nerve of adrenaline can complete the contraction of blood vessels on the body surface, keep the body warm and raise the body temperature. The death caused by hypothermia is mainly due to the decrease of enzyme activity, which affects blood circulation and oxygen metabolism. At first, patients with hypothermia will have symptoms such as headache, muscle stiffness, emotional anxiety, pale skin, chills and rapid heartbeat. When the body temperature is too low, the patient will be drowsy and even insane.

Third, terrible temperature loss.

After the patient's body temperature drops to 35 degrees or even 32.2 degrees, hallucinations, coma and cardiac arrest will occur. As one of the great risks of outdoor sports, temperature loss is very harmful. Athletes should take preventive measures, such as preparing jackets, down jackets, quick-drying clothes, hats, scarves, gloves and wind masks.