When we go camping in the wild, we often encounter all kinds of dangers. One of the things that has to be mentioned is the loss of temperature, which is not a patent for the outdoors in winter, and it is also easy to lose temperature in the mountains, forests, deserts and grasslands in summer.
It means that the heat loss of the human body is greater than the heat supply, resulting in a decrease in the temperature of the core area of the human body, resulting in a series of symptoms such as chills, confusion, heart and lung failure, and even death.Sometimes, the main cause of temperature loss is not that the ambient temperature is too low, but that the heat preservation measures are not well done.
With regard to heat preservation measures, what has to be mentioned is the “stratified dressing method”.
The biggest advantage of layered dressing method is that the thickness of clothing can be adjusted flexibly according to exercise intensity, external environment and weather conditions. This method allows the body to maintain maximum comfort with the lightest weight, while significantly improving the flexibility and coordination of the body. It can effectively avoid the awkward scene of hot when moving, cold when calm down, and wearing bloated constant movement.
It is widely used, not only in winter, but also in other seasons. It is no exaggeration to say that if you want to play outdoors, you must first learn to dress in layers.
However, according to the physique and habits, everyone’s layered dress method is not the same. But the core principle is the same, that is, the layered dressing principle. Refers to the separation of clothing “close layer (also known as the basic layer),” insulation (warm) layer (or middle layer), “protective layer (or outer layer)” three layers to wear, each layer corresponding to the function, and the corresponding clothing requirements are different.
Close to the body layer
The main function of this layer is perspiration, ventilation, as far as possible to keep the body dry. The selection criteria should be “comfortable”, “breathable” and “sweating quickly”. Nowadays, many sports and outdoor brands have clothes made of quick-drying fabrics, which you can choose when you buy them.
In addition, novice choose close layer, must pay attention to one point, because the cotton material wet completely does not have the warm performance, and is not easy to dry, so do not choose the cotton material clothing as the close layer.
Thermal insulation layer
The function of this layer is to lock up the air and retain heat to the maximum extent.The choice and collocation of this layer should be matched flexibly according to personal physique, external environment and sports intensity. Can be a single layer of thick clothing, such as down, soft shell, etc., the advantage of this combination is that the thermal effect is good, but it is not easy to adjust according to the external environment and temperature.
If you use multi-layer thin clothing, remember not to choose cotton material, the reason is the same as above.
The selected criteria are “windproof” and “waterproof”.
The function of this layer is not only to prevent wind and rain, but also to protect the body from foreign bodies (such as forest areas, mountain hiking often encounter sharp branches, rocks, etc.).
Equipment is actually grabbing velvet and hard shell, through the zipper connection form, make a piece of clothing.
Three-in-one equipment can be understood as a piece of clothing with both insulation and protective layer, which is a good choice for beginners or leisure outdoor sports.
In addition to these three layers, hats, gloves and socks are also key. The head corresponding to the hat is the key protective part of the outdoors in winter, and more than half of the heat in the human body is emitted to the outside world through the head. And the head is the core area of the human body, once this part of the body gets cold, the body will lower the blood supplied to the limbs to ensure the temperature of the core area.
Although the hands and feet are not the core areas of the body, they are the most vulnerable to frostbite. Especially in the hands, the flexibility will be greatly reduced after the cold, unable to complete some complex movements, even some simple movements can not be completed. The equipment of these three parts can also refer to the layered dressing method.
In the process of outdoor sports, in addition to keeping the body dry and reasonable clothing matching, we should also maintain adequate drinking water to prevent dehydration (dehydration can also lead to loss of temperature). In addition, some solid sports drinks or salt pills should be kept in the bag to supplement electrolytes. The intensity of outdoor sports should not be too large, do not blindly choose close to or beyond their physical limit of outdoor sports, risk is relatively high,therefore it is important to step by step.