In the winter when the temperature drops and the wind is dry, people often say, “How cold it is, my ears are freezing off!” Yes, there are some organs in the human body that are very afraid of cold and even get sick because of it. The ear is arguably one of the organs that is most afraid of the cold. Why are the ears most afraid of the cold? We humans are constant temperature animals, and our normal body temperature is maintained at about 37°C. When the outside temperature is too low, the body is not able to keep up. When the outside temperature is too low, body heat will be emitted into the air and the person will feel cold. If the temperature is below 0℃ without insulation, the blood will coagulate and the tissues on the body will freeze. The human body will have cotton clothes, cotton pants, shoes, socks, hats, etc. to keep warm, while the eyes, ears, nose and mouth of the head are exposed, and the body needs them to receive information from the outside world, thus insulation is more difficult. Especially the ear, which is only a thin piece of skin on both sides, is quickly dissipated after contact with the air, which is already very little heat. In addition, the ears are distributed with terminal capillaries. In the human body, blood is pumped from the heart and flows along the large arteries to the medium arteries, small arteries and even capillaries, and the more it reaches the end of the capillaries, the less blood there is, and the less natural energy and heat there is. For these reasons, in winter, when the cold wind whistles past the ears, the ears naturally feel cold. How can I keep my ears warm? Some people are prone to frostbite in their ears, which is actually a sign that they are afraid of the cold, and some people even feel that their ears are so cold that their head hurts. The best way to do this is to put on ear muffs when you go out, or cover your ears with a wide hat or scarf. When you enter a warm room from outside, you can quickly rub your ears with your hands to get them warmed up quickly. It is also important to note that it is not advisable to use hot water to apply hot objects to your ears after they have been frozen, as this can cause symptoms to worsen.