What are the misunderstandings about heating in winter?

      Misunderstanding 1: Wear thick clothes to keep warm

　　In cold weather, some people wear bulging clothes to keep themselves warm and cold, thinking that the more they wear, the warmer they will be. In fact, this is one-sided. Because the clothes themselves do not produce heat, they only play an isolation role, forming a good microclimate zone between the clothes and the body, and between the clothes, so that the body's heat can be preserved and the body will feel warm. Second, it is best to eat hot pot in winter. If you wear too much and too thick clothes, the heat will cause you to lose weight. skin Blood vessels dilate, increasing blood flow to the skin, thereby increasing heat dissipation. In this way, it reduces the body's ability to adapt to changes in external temperature.

　　Misunderstanding 2: Eat hot pot often to keep warm

　　Thousands of households, men, women, old and young, all like to eat hot pot in winter. However, hotpot is not for everyone. The climate in winter is dry, and hot pot seasonings tend to be warm. If you have obvious chills, especially in your limbs, long and clear urine, loose stools, a light tongue, and a heavy and thready pulse, it is better to eat hot pot. If you have dry mouth and tongue, spontaneous sweating and night sweats, frequent shortness of breath, irritability in the afternoon, easy heat in the palms and soles, red or reddish tongue, dry and hard stools, etc., which are symptoms of Qi and Yin deficiency in traditional Chinese medicine, you should eat less or not eat hot pot. hypertension, Stomach disease Patients should not eat spicy food.

　　Misunderstanding 3: The air conditioner is hot and comfortable

　　The cold wind in winter is biting. In order to enjoy warmth indoors, a considerable number of people like to adjust the temperature of the air conditioner to 27°C or above, making the indoor temperature just like the turn of spring and summer, which indeed makes people feel very comfortable. But people who have been in air-conditioned environments for a long time are susceptible to air-conditioning syndrome. Specific symptoms include nasal congestion, dry throat, dry mouth, headache, decreased immune function, etc. The temperature difference between indoor and outdoor is too large, making it extremely easy to get sick cold ； some cardiovascular and cerebrovascular disease Patients are prone to myocardial infarction, stroke, facial nerve Paralysis, even death.

　　Misunderstanding 4: Wear a mask often

　　In cold weather, many people are accustomed to wearing masks. In fact, the nasal mucosa is rich in blood vessels and spongy tissue, and the blood circulation is very strong, which has a warming effect on the inhaled cold air. The nasal duct is very tortuous, which can heat the cold air and pass it through the nose.

　　Misunderstanding 5: Covering your head sleep

　　Some people are used to sleeping with their heads covered in the quilt. They may feel warmer temporarily, but the oxygen in the quilt will become less and less, and carbon dioxide and unclean gases will accumulate more and more. Therefore, after sleeping with your head covered, you will often feel groggy and exhausted.

　　Misunderstanding 6: Wash your face with hot water

　　In winter, when people's faces are stimulated by cold air, their sweat glands and capillaries shrink. When encountering hot water, it expands rapidly, but after the heat is dissipated, it returns to the state at low temperature. The capillaries open and shrink like this, which can easily cause wrinkles on a person's face.

　　Myth 7: Drinking alcohol to keep out the cold

　　After drinking alcohol, you will feel hot all over your body. This is the result of alcohol causing the body to dissipate its original heat energy. After the drunkenness wears off, a large amount of heat energy escapes from the body, causing goosebumps all over the body, leading to post-drinking chills.

　　Myth 8: Roasting frozen hands and feet

　　In winter, when hands and feet are exposed for a long time, blood vessels constrict and blood flow decreases. At this time, if it is roasted with fire immediately, the blood vessels will be paralyzed and lose their contractility, resulting in arterial blood stasis, capillary dilation, enhanced penetration, and local blood stasis. Mild cases may cause frostbite, while severe cases may cause tissue necrosis. Therefore, frozen hands and feet can only be gently rubbed to slowly return to normal temperature. After the inhaled cold air enters the lungs, it is generally close to body temperature. Wearing a mask to protect against cold will protect the mucosa of the nasal cavity and entire respiratory tract. exercise , the disease resistance will be reduced, and it will be easier to catch a cold or rhinitis.