Is it warmer to dress more? Is it true that the more you wear, the warmer it really gets?

In the cold winter, everyone is wrapped in thick winter clothes, no matter where you go, you can see people wearing all kinds of down jackets and cotton clothes, especially when the cold air transits, people are wrapped in airtight, thinking that it will be very warm, in fact, there is a big misunderstanding. Sometimes even the more you wear, the colder it gets.

When it's cold, you need to wear more clothes, which seems to be an eternal conclusion, and the colder it is, the more you need to wear more to keep out the cold. In fact, there is a small internal environment between the human body and clothes. When the clothes are worn, the thickness of the air layer between the body and the clothes increases, and the warmth increases.

However, when the total thickness of the air layer exceeds 15 mm, the air convection in the clothes increases significantly, which means a bit like what we often say "wearing the wind", so of course it will be colder instead of warm. On the other hand, wearing too many and too heavy clothes will dilate the blood vessels, which will increase heat dissipation and reduce the body's ability to adapt to external temperature changes, so it will be more afraid of cold.

First of all, many people like to wear clothes with three layers inside and three layers outside, but most of these clothes are very breathable wool clothes, which are not only very heavy but also do not have the effect of keeping warm. Instead of this, it is better to wear a layer of thermal underwear and pants that are very close-fitting, and then add a thin layer of sweater. Of course, in the outermost layer of clothing, it is best to wear a down jacket or leather jacket that can resist the wind, which can not only maintain the temperature of the body for a long time, but also not be attacked by the cold wind from the outside.

If the temperature is really low, just change into a thick sweater. Secondly, some parts of our body that are particularly sensitive to cold need special protection. For example, neck, head, hands, feet, knees, etc.

The more clothes you wear, the warmer it gets? Can drinking alcohol really keep you out of the cold? It's all wrong!

It's not that the more clothes you wear, the warmer you get. Sometimes when two or three coats are worn together and wrapped tightly, the heat preservation effect is not obvious, and it will make people feel colder, because the air between the layers of the clothes becomes very small, and the heat conduction is accelerated when that air layer is lost. Wear thin and soft clothes close to the body, wear fluffy and warm clothes in the middle, and wear windproof and waterproof clothes on the outside; And try to tighten the neckline, cuffs and hem to reduce air convection in the garment, where the heat loss at the neckline is relatively largest, so it is best to wear a scarf to keep warm.

You can't ignore your head. While wearing a hat to reduce heat loss from the top of your head, it is best to wear a pair of shoes with thick soles to avoid the <> of "cold from your feet".

Dress for the cold is not always better. When winter comes, people think about adding more"Thick"Clothes, but it's not enough to just consider the thickness of the clothes, and you have to pay attention to wearing clothes"layers"Number. Thick clothes have poor air permeability, and people are prone to sweating, especially when they are outdoors, and clothes soaked in sweat will cause heat to be quickly dissipated due to the lack of warmth of the air between the fibers of the clothes.

Therefore, some people always feel cold even though they are wearing thick coats.

On the contrary, if you wear a few extra layers of clothing, the situation is better. There are many layers, and the air circulation between the layers is relatively good, and it is easy to dry even if you sweat, which can ensure the heat insulation effect of the air inside the clothes. In addition, there are many layers, there is room for replacement, no matter indoors, outdoor can always keep the body temperature relatively stable, and will not be hot and cold, so that the body is cold, therefore, only by wearing more layers of clothes can really play a role in keeping warm.

In winter, wear at least three layers of clothing. As the weather gets colder, you can increase the number of layers appropriately, and you can't just consider the thickness of the clothes.

The weather is cold in winter, especially in the northern part of our country, and it becomes cold and freezing in winter. Some people dress thick to keep warm, believing that the thicker the dress, the better. Actually, this view is one-sided.

The degree of warmth of the garment is not directly proportional to the thickness of the garment, but is related to the thickness of the air layer inside the garment. As the garment becomes thicker and thicker, the thickness of the air layer gradually increases, and the warmth increases. However, when the total thickness of the air layer exceeds a certain range, the air convection in the clothing will be significantly enhanced, resulting in a decrease in warmth.

In addition, from the perspective of human physiology, if you wear too many clothes and too thick, the blood vessels will dilate due to the high temperature, resulting in an increase in blood flow to the world, thereby increasing the amount of heat dissipation, but reducing the body's ability to adapt to external temperature changes. In addition, some people who are prone to chilblains in winter are more likely to develop chilblains due to excessive clothing that restricts their movements, resulting in insufficient peripheral blood circulation.

In early winter, try not to add a lot of clothes because the climate is cooler, but add them slowly so that you can gradually adapt to the environment. This way, you won't feel cold even if you wear less clothes in the depths of winter.

Increase the number of layers of clothing, multiple thin pieces of clothing lose much less heat than one thick garment.

Not necessarily.

The degree of warmth of the clothes is related to the thickness of the air layer inside the clothes, when the thickness exceeds 15 mm, the air convection in the clothes increases, and the warmth retention decreases.

If you wear too much clothing and too thick, it will cause the blood vessels to dilate due to the heat, which will increase heat dissipation, reduce the body's ability to adapt to temperature changes, and people will become more afraid of cold.

Winter dress rules

1. Choose warm and comfortable clothes

Winter clothing should have a certain number of pieces and a suitable thickness. Down jackets have a certain thickness, and the pores of wool fabrics are not straight, which can bring a suitable microclimate to clothes. Leather clothing can almost block the air convection inside the clothes, and it is best to wear leather clothing when going out in winter.

2. Control dressing according to room temperature

The indoor temperature in winter should not be too high, the temperature difference between indoor and outdoor is too large, and the human body is easy to induce colds and other diseases due to difficulty in adapting. According to expert research, there is a range of air temperature that makes people feel comfortable, and if the temperature is too high, it will not only cause discomfort and disease, but also affect higher neural activity and autonomic nerve function, which will make people lose concentration, poor precision and coordination, and reduce reaction speed.

3. Dress too high and too tight

If the collar is too tight, the blood vessels in the neck will be compressed, so that the nutrients delivered to the brain and eyes will be reduced, which will affect vision, and will also affect the normal activities of the cervical spine, which can easily lead to cervical spondylosis.

Some people wearing high-necked clothes turn their heads too quickly, which can induce bradycardia or even cardiac arrest and hypotension, resulting in a decrease and temporary interruption of blood flow to the brain, and in severe cases, fainting, paleness, and confusion.

No, you don't have to wear as many clothes as possible in winter, in fact, the warmer you wear in winter, the better, for example, you wear a thermal underwear inside, and then wear a down jacket outside, so that it is best if you don't feel cold. If you wear unwarm clothes, a lot of them, you will feel like you will be tied to your body, very uncomfortable.

Winter is not about wearing as many clothes as possible, but about wearing warm, well-fitting and beautiful.

It's not that the more you wear, the better, but that you feel warm, as long as it's not cold!

It is not necessarily that more is better, but to keep yourself warm, and to wear clothes in moderation, and to wear comfortable and warm clothes.

Of course not, it will be inconvenient to move if you wear too many clothes, you can just wear some thicker clothes.

No, as long as you wear warm clothes and don't need to be particularly thick, it will be very warm.

The weather is getting colder and colder these days, and the more clothes are being crossed, but is it really warmer the more you wear?

Before we can ask this question, we need to know why it is cold? Our human body is consuming energy all the time to produce heat, and at the same time, it is also dissipating heat, and when heat is generated, the temperature decreases, and we feel cold. Therefore, we feel cold because of heat production and heat dissipation.

And our body's heat production is basically constant, so the key is heat dissipation. So what factors are related to heat dissipation?

Based on the knowledge of heat transfer, we know that there are three main ways in which an object dissipates heat: conduction, convection, and radiation.

Conduction is mainly for solids, convection is mainly for fluids, and radiation is present in both solids and fluids. For example, in the process of boiling water in an iron pot, the heat is transferred from one side in contact with the fire source to the other side in contact with the water, which is conduction; The heated water will flow upward, and the unheated water will flow downward, (this is why the boiling water will tumble), and by convection, all the water can be heated, and this heat transfer method is called convection heat transfer.

Now that we know how the heat is dissipated, we have to do the opposite.

For conduction, we have to choose materials with low thermal conductivity (comma light poor thermal conductivity), and for convection, we have to choose materials with poor flowability. (Radiation is the main way of heat transfer in vacuum, which is negligible in the atmosphere) among the wax wide thermal insulation materials, the air has the best thermal insulation effect, followed by cotton wool and fluff blankets. Therefore, the clothes we wear in winter are mainly cotton and cashmere.

Moreover, our down jackets and padded clothes are very fluffy, and this fluffy space can store a large amount of air, and at the same time block the convection of air, so that an air layer will be formed between the body and the outside world, so as to prevent heat loss and achieve the purpose of heat preservation.

In addition to the material, another factor that affects thermal insulation is thickness. (Generally speaking, under the same conditions, the more you wear, the warmer) but not the thicker the better, because as the thickness increases, although the heat conduction decreases, the heat loss caused by thermal convection increases dramatically, so the warmth effect is best when the sum of heat conduction and heat convection is minimal.

Knowing the above principles, then the principles of our dressing come out: the outer layer is windproof to reduce convection, the middle layer is warm, and the inner layer is perspiring. Here is the focus on why the inner layer is perspiring.

The reason why our down can keep warm is that it can be expanded, so as to store more air, increase the thickness of the air layer, and then achieve the effect of heat preservation. The reason why down can expand is because of its unique spatial structure, if the down is invaded by water vapor, the down will lose its original spatial structure and collapse, thereby greatly reducing the ability to store air, and thus greatly reducing the warmth effect. Therefore, if the inner layer excludes water vapor, the spatial structure of the middle layer will not collapse, and the warmth effect is of course good. Reference.

The more the colder. Because the warmth of the clothes is related to the thickness of the air layer inside the clothes. The more clothes you wear, the thicker the air layer, the warmth will also be enhanced, and proper foot soaking before going to bed can not only heat the human body, but also restore the body's yang energy.

At the same time, foot soaking can also make the blood vessels in the feet dilate, thereby promoting blood circulation in the feet, which in turn accelerates the blood circulation of the whole body, improving the metabolic function of the human body, and promoting the yang energy of the human body, so that you can sleep well and warm your body.

Winter is not about the more clothes you wear, the warmer you are, the more you wear it, the more you will make the whole body feel very cumbersome, at most wear three pieces of clothing, you can wear a base inside, and then wear a warm sweater, and wear a down jacket or cotton jacket outside.

Wearing thick will definitely be warmer! But wearing too much can be uncomfortable!

No, the more you wear, the more you wear, it's counterproductive.

1. Winter clothes are not necessarily warmer the more you wear.

2. The warmth of clothes depends on the thickness of the air layer in the clothes, when people wear more and more clothes, the thickness of the air layer in the clothes will indeed increase with the increase of clothes, and the warmth will also increase. However, when the thickness of the air layer inside the clothes exceeds centimeters, the air convection in the clothes will increase significantly, and the warmth of the clothes will become poor, and the degree of warmth will not rise but fall, so the more clothes are worn, the warmer they are. Wearing too many clothes in winter will not only not keep you warmer, but also not conducive to your health.

From a physiological point of view, if people wear too much clothing in winter, the blood vessels of the human body will expand due to the increase of heat, which will eventually lead to an increase in the heat dissipation area and reduce the body's ability to adapt to air temperature, which will make people feel colder, which is not conducive to keeping warm.