At present, it is the end of the light snow season, and soon we will usher in the heavy snow season, which will also intensify the cold. The meteorological department also reminds the public to take necessary measures to prevent cold and ensure health and safety. After frostbite, avoid soaking in hot water or roasting over fire to prevent secondary damage. How to scientifically prevent freezing? Firstly, to prevent frostbite, special attention should be paid to peripheral areas such as ears, fingers, toes, and nose tips. When the weather is cold, it is recommended to wear gloves, thick socks, ear protection caps, etc. when going out to avoid prolonged skin exposure. If the skin appears pale, numb, stiff, red, swollen, or stinging, it is an early sign of frostbite. It should be immediately returned to a warm environment and slowly reheated with warm water close to body temperature (about 37 ℃ to 40 ℃). Do not directly soak, roast, or snow rub with hot water to avoid secondary tissue damage. If severe frostbite occurs, seek medical attention promptly. Pay attention to frostbite and seek treatment at a burn department. The core of keeping warm is to "lock in heat" rather than "increase thickness". Secondly, the core of keeping warm is to "lock in heat" rather than "increase thickness". It is recommended to use the "onion style" layered dressing method. The inner layer can be made of breathable and sweat wicking quick drying material; It is recommended to use fleece, thin down jackets, etc. for the middle layer to store heat; For the outer layer, a windproof and waterproof jacket or thick down jacket should be worn to block the invasion of cold air, especially to protect the head. The heat dissipation of the head accounts for 30% of the human body, so it is recommended to choose a hat that can cover the ears. In addition, sudden drops in temperature may trigger respiratory and cardiovascular diseases, worsen chronic underlying diseases, and may also cause frostbite. Therefore, the public should take measures to prevent cold and keep warm, especially for the head, chest, and abdomen. Furthermore, if the cold wave process is accompanied by rain and snow, coupled with a decrease in temperature, it can cause the ground to become wet and slippery. The public should pay attention to anti slip and fall prevention when going out, and try to avoid staying outdoors for a long time. Meteorological warning is a health alert. Adjusting your life according to the weather is necessary to protect yourself and your family in the cold and changing weather. (New Society)