Disclaimer in advance: If this article dissuades a group of northerners who want to go to the south to make a fortune... We are not responsible for it ~ After all, there are thousands of roads to riches, and one can be blocked.
In the north, winter is a warm kang, wearing short-sleeved pants at home; when it is hot, go to the snow to play chess.
Or eat a root ice cream, heat a snack with a radiator, or even... Perm your hair!
But, if in the South, sorry
You might be like this —
Or something like this —
If you're a money-charging player, you might be a little more decent...
Obviously, the snow in the north is thicker and the ice ballast is more, but once you go to the south, it feels colder! Why?
Come and master a few scientific and practical cold-fighting techniques that can really help you walk into this winter with dignity!
We often say that the temperature only represents the temperature of the air, not the somatosensory temperature. Wind speed and relative humidity are two important factors that affect the somatosensory temperature.
●Wind speed:
At the same temperature, wear the same thickness of clothing, if the 6 strong wind (wind speed 10m/s, large branches can be shaken) blowing towards you, the air is a little moisture, just like turning on the "quick-freezing mode", you are naturally more likely to feel cold.
●Relative humidity:
Studies have shown that for every 10% increase in humidity, the person's sensory temperature decreases by 1°C [1]. Therefore, the difference is that the north is "dry and cold" and the south is "wet and cold".
The north was dry, and thanks to the heating, the house was dried, taking away some of the moisture. The humidity in the south is high, and the clothes and quilts are more humid than in the north, even if they are wrapped in rice dumplings, they are still cold.
Especially in the rainy winter, that little drizzle, like a small bayonet, is deeply rooted in your bone marrow veins.
Ps: Winter in the south is also divided into varieties. In the Yangtze River Basin and Guizhou and other places, some places will rain, light snow, road ice;
But In Guangdong, once it comes to winter, it is also necessary to prevent heat stroke! Ten times into the winter, nine times the start failed, so, you savor...
(Source: Southern Metropolis Daily)
Based on the above theory, we have summarized a set of cold methods suitable for southerners:
Can't help but remind this southerner: You covered the quilt the wrong way!
According to the principle of physical heat transfer, the bed is solid and the thermal conductivity efficiency is higher than that of gas. When you're lying in bed, the heat is mostly sucked away by the bed and floor below your body, not the air above your body.
Therefore, no matter how thick the quilt covered on the top, it is not as good as the bottom of a blanket for heat insulation!
Plus, these little details can also keep you warmer:
Take a hot shower or soak your feet before going to bed [4]. Because the blood circulation is accelerated, the heat of the water is absorbed, and the quilt is quickly drilled into the heat preservation, and the whole body will be warm and warm
Wear a set of comfortable and warm pajamas. Coral fleece fabric pajamas to understand, much warmer than sweaters!
As for the socks, it doesn't hurt to wear jio cold to sleep. Some of the "obstruction of blood circulation" statement, in fact, there is no scientific basis, as long as the socks are not wrapped tightly, basically no impact.
However, after taking a bath or soaking your feet, you should pay attention to carefully dry your feet and then wear socks to avoid fungal growth and cause athlete's foot.
Of course, you can also find a boyfriend or girlfriend to warm the bed.
Girls can focus on the above parts of the boyfriend, which are close to the core body temperature and are a warm mecca!
As for the single Wang, electric blankets and warm water bags are used.
I really can't stand the cold, so let's go to the north... Where to work is not part-time work?
When it comes to hit workers, the hardest moment is waking up in the morning.
Just because of the residual temperature, the southerners, who had already practiced the "divine skill of dressing in the bed", tried for half an hour before they plucked up the courage to accept the outside world.
Inside the nest is Sanya, outside the quilt is Siberia! Who can stand this?!
According to incomplete statistics, the action of "getting up" has caused psychological trauma to 80% of southerners.
Covering hot water bottles and cushioning electric blankets are all "local heating methods in the bed". If you want to stay out of bed in the morning, you have to warm up outside the bed.
Foreign studies have found that the appropriate bedroom sleeping temperature is about 19 °C, and when the temperature is deviated, people's discomfort will increase [2].
●If you have difficulty getting out of bed, you can try to turn on the air conditioner. Opening 20 ° C is enough, turn on the air conditioner in addition to understanding the "freezing", but also dehumidification. Because in the south (especially coastal cities) dampness may be more important than heating. (But in the north, because the use of heating in the house aggravates the dry air, and some viruses may be more likely to multiply and spread in a dry state.) Therefore, the interior of the north needs to be properly humidified. ）
● Use of small electric heater or heater: win in convenience, small range heating capacity is strong. If you have a mine at home, you can also consider buying an oil tingle heater to continue your life, and in the case of sufficient power, it can also bring you the warm-up experience of northern heating.
Jitter is really effective. When the human body feels cold stimulation, the skeletal muscles will shudder and produce heat, and the muscles of the body will begin to shake. However, for the sake of image and physical strength, it is not a good idea to shake all the time.
So in addition to shaking, trying to get fat and sticking a little "fat" is not OK?
Although fat people have more fat and better heat insulation [5], there is no significant difference in core body temperature compared to normal weight people [6]. In terms of body surface temperature, the results of different studies are more contradictory [7].
In addition, the ambient temperature of fat people who have a "chill reaction" (cold to the point of starting to shiver) is very close to that of ordinary people [5].
Therefore, the fat man is at best a "thermos cup", not a "warm baby". (Don't compare fat people to polar bears and penguins.) They are hardy because they have a lot of brown fat, but this fat is very small in humans! )
However, the study found that from the subjective sensitivity of "fear of cold", thin people are indeed more likely to be "cold hands and feet" than fat people [7]. In particular, young and slender women reacted most strongly, while older obese men felt the least.
If you want to make yourself hardy, the healthiest way is to insist on exercising muscles, so that your body's basal metabolic rate is increased, the thermogenesis efficiency is improved, blood circulation is accelerated, and more calories are brought to the limbs.
Many girls have cold hands and feet as soon as they arrive in winter, and the solution is the same as above. Of course, you can also use electric heating bags and warm patches.
(Image source: a shopping platform)
The cold in the north is a physical attack, and you can return the blood when you return to the room; while the cold in the south is a 720 ° magic attack without dead angles, how to dress up to resist this wet and cold weather?
It's time to put the "three-tier dressing method" on the agenda.
Sweat wicking + warmth + windproof, through the superposition of a number of different functional clothes, build a protective "shield" for the body, and after wearing it, you can also move freely outdoors.
●Base layer: Sweat-absorbing and breathable. The fabric is preferably skin-friendly, soft, cotton, synthetic fiber quick-drying underwear or fine wool underwear.
●Warm layer: Maintain body temperature and have a good breathability function. It can be fleece, down, and be sure to be fluffy.
●Outer layer: Windproof, and can discharge certain moisture from the inner and middle layers. Such as down jackets, trench coats, storm jackets are good choices.
So, friends of the North
If you're reading this article in a heated house right now
Remember to greet your friends who are shaking in the south
And attached this article
They will definitely curl their sleeves and type thank you!
(Source: Network)
bibliography
[1] Xu Dahai,Zhu Rong. Analysis and study of human feelings about temperature, humidity, wind speed and clothing index[J]. Journal of Applied Meteorological Science,2000(04):430-439.]
[2] Candas V, Libert JP, Vogt JJ et al. Body temperature during sleep under different thermal conditions, in: Indoor Climate: Effect on Human Comfort, Performance and Health, pp. 763-775
[3] Haskell E H, Palca J W, Walker J M. Metabolism and thermoregulation during stages of sleep inhumans exposed to heat and cold[J]. JAppl Physiol, 1981, 51(4): 948-954.
LIU Yanjiao. Changes in the body during sleep[J]. World Journal of Sleep Medicine,2017,4(01):6-18.
WANG Juan. Monitoring of physiological indices of non-chilling fever production in obese and non-obese populations[J]. Proceedings of the 5th China Doctor of Sport High-level Forum, 2014.
[6] Heikens M J, Gorbach A M, Eden H S, et al. Core body temperature in obesity[J]. The American journal of clinical nutrition, 2011, 93(5): 963-967.
[7] Mozaffarieh M, Gasio P F, Sch tzau A, et al. Thermal discomfort with cold extremities in relation to age, gender, and body mass index in a random sample of a Swiss urban population[J]. Population Health Metrics, 2010, 8(1): 1-5.