It is relatively cold in winter. At this time, many people are afraid of cold, so it is very important to keep warm and keep warm in winter. At this time, we must pay attention to keep cold in the first place. It ’s a little bit, but how do we do it, and to avoid misunderstanding, let ’s take a look.


Wear thick clothes to keep warm


Because of the cold weather in winter, some people wear a lot of clothes to keep them warm and cold. They feel that this method can be used to keep warm. But in fact this is a very one-sided approach. Because the clothing itself does not produce heat, it only acts as an isolation, so that a good microclimate zone is formed between the clothes and the body, and between the clothes and the clothes, so that the human body's heat can be preserved and the warmth can be felt. And if we wear too much and too thick clothes in the winter, due to the large heat, the blood vessels in the skin will expand and the blood flow to the skin will increase, which will increase heat dissipation. This reduces the body's ability to adapt to external temperature changes, so it is not conducive to keeping us warm.


Hands and feet frozen with fire


At any time, even in the cold winter, our hands and feet will be exposed for a long time. At this time, it is easy to cause vasoconstriction and reduced blood flow. At this time, if you immediately bake with fire, you will numb the blood vessels and lose the contractility. Arterial stasis, capillary dilatation, increased osmotic pressure, and localized blood stasis will occur. Light forms frostbite, and severe causes tissue necrosis. Therefore, you can only gently rub the frozen hands and feet to slowly return to normal temperature. Inhaled cold air usually approaches body temperature after entering the lungs. Wearing a mask to protect against cold, the nasal cavity and the entire mucous membrane of the respiratory tract cannot be exercised, and the disease resistance will decrease. As a result, we will suffer from various diseases that affect our health, so we need to be careful to avoid it.


It's normal to be afraid of cold in winter, so at this time we must pay attention to how to keep warm, but there are some wrong practices when keeping warm. First of all, the thick clothes don't necessarily protect from cold. We need to be clear. At the same time, the cold conditions of the opponent's feet cannot be directly heated by fire.