Should I close my windows when driving at high altitudes?

No, oxygen is scarce at high altitudes, and there is not enough oxygen in the car when you close the windows.

You should close the windows, but you'll feel stuffy.

One of the main characteristics of high altitude is that the air is thinner and the oxygen content is less, so people will feel hypoxic and easily fatigue and gasp. The engine of the car is also a truth, to have strong horsepower, you have to absorb a lot of oxygen to promote combustion in the engine. The plateau is hypoxic, and the engine inhales less oxygen, so the oxygen content at the same speed is less, and the combustion efficiency is low.

The best solution is to increase the speed and make the engine work a little faster to compensate for the lack of oxygen content.

Therefore, what should be paid attention to when driving on the plateau is to increase the speed of the engine appropriately, for example, 2000 rpm on the plain is very powerful, and 2500 rpm is mentioned at high altitude. The manual transmission can control the gear by itself, and the low gear provides high speed, and the automatic transmission can step on the accelerator or hang the S gear.

But then again, except for those tens of thousands of dollars of small cars, most of the cars now will not have a very strong "altitude sickness", but they will feel that the power is a little weak, but it will not be difficult to make car companies have about one million kilometers of road tests before launching a new product, including altitude tests. Otherwise, if you look at so many cars in Lhasa, how they run, they won't all do engine strengthening.

The plateau area has low air pressure, thin air and changeable climate, and mainlanders will experience altitude sickness such as chest tightness, shortness of breath, dizziness, and fatigue when they first arrive at the plateau. If the driver has the above symptoms, he should pull over, take a short rest, do not move, talk less, and inhale some oxygen if necessary, and gradually adapt to it over time.

Due to the small air density, the oxygen content is reduced, and the engine air intake is reduced, which will cause the mixture to be too concentrated to reduce the power of the car and increase the fuel consumption, and at the same time, due to the low air pressure, the mixture is not easy to detonate when burning, and the ignition angle of the distributor can be adjusted early (2-3 degrees earlier for every 1000m rise in altitude). The spark plug electrode gap can also be reduced by 1 mm to increase engine power.

Low air pressure also causes the boiling point of cooling water to decrease. The water temperature of 70-80 is normal in the interior, but already in the highlands"Bring to a boil"Finish. Therefore, when the car is going uphill, the water temperature should be strictly controlled, and when the water temperature rises and the fault light alarm is issued, the car should be stopped immediately, and the hood should be opened to cool down naturally, so as to avoid the image of air resistance caused by the engine working under high temperature conditions for a long time.

When driving uphill, don't rely entirely on low-speed driving, and try to increase the road section to a higher gear for driving.

Plateau. Plateau refers to a relatively complete large-scale uplift area with an altitude of more than 500 meters, a vast area, open terrain, and a relatively complete area of uplift bounded by obvious steep slopes. The plateau is known as the "stage of the earth", which is formed in the long-term continuous large-scale crustal uplift.

Some plateaus have a broad and flat surface, and the terrain is not very undulating; Some plateaus are undulating and the terrain changes greatly.

The best way to avoid or alleviate altitude sickness is to maintain a good attitude to face it, many reaction symptoms are psychological or caused by psychological effects, such as: fear of plateau, lack of mental preparation and victory over altitude people, the chance of altitude sickness is higher.

It is recommended that when you first arrive in the plateau area, you should not walk quickly, let alone run or run, nor do physical labor, do not overeat, so as not to increase the burden on the digestive organs, do not drink alcohol and smoke, eat more vitamin-rich foods such as vegetables and fruits, drink water in moderation, pay attention to keeping warm, and take less baths to avoid cold and physical consumption. Don't start with oxygen, try to get used to it yourself, otherwise, you may never be able to live without it on the plateau (very dependent).

Finally, if you travel to the altitude or something, you can take some medications to relieve altitude sickness.

There is a difference between acute and chronic mountain sickness, and the mountain sickness referred to in mountaineering generally refers to acute altitude sickness. The vast majority of people have symptoms above 3,000 meters. People involved in outdoor sports clubs say that the occurrence of acute mountain sickness is directly related to the rate of climbing, so the most effective way to prevent altitude sickness is to control the speed of ascent from low altitude to high altitude, if possible, no more than 300 meters a day.

There are also some travelers from the plains to the highlands, and it is generally important to make sure that there are no colds and asthmas before entering the highlands, and if necessary, you can carry a small oxygen bag.

Headache and nausea are common symptoms of acute altitude sickness. People who sleep unevenly at night, and people who have just gone to the plateau area, due to the dry weather in the plateau area, are prone to fire, drink more, eat less hot food, and sometimes have a feeling of suffocation is also a symptom of acute altitude sickness, which sometimes has a more severe impact on rest than other factors.

Drinking plenty of water is important to prevent and reduce symptoms. This may sound contradictory to preventing edema, but drinking plenty of water is good for urination, relieving blood acidity, and reducing salt in the diet and eating more carbohydrates. Drinking less water to prevent water accumulation may lead to an increase in electrolyte concentration in the body, a more imbalance in osmotic pressure, and worsening water accumulation.

In addition, you should not smoke, there is not enough hemoglobin when you first go up the mountain, and the affinity of carbon monoxide and hemoglobin in cigarettes is much higher than that of oxygen. Reducing the amount of work is also helpful for coping with mountain sickness, mainly because the partial pressure of oxygen in the blood decreases when people are active, which has a similar effect to the human body as low air pressure, so people who are not used to it should control their workload.

Aspirin is helpful in reducing headache symptoms and helping sleep, but it also has the risk of covering up symptoms and delaying**. Seek medical attention if you notice symptoms.

Generally, at high altitude attractions, there are oxygen rentals. If you are not comfortable at high altitudes, you should pay attention to your physical condition at all times. Don't be too tired and tired, supplement more, high-energy foods, drinks can also buy some American ginseng

Miscellaneous said that you want to go to the Snow Mountain Team to give?

Drink more water: Due to the low humidity of the plateau air, the human body is prone to dehydration, and the increase in hemoglobin leads to an increase in blood viscosity, which is easy to form thrombosis, causing cardiovascular and cerebrovascular accidents. Therefore, drink small amounts of water constantly.

Quit smoking: Cigarettes produce carbon monoxide with 250 to 300 times more affinity for hemoglobin than oxygen, and smoking a lot of cigarettes can significantly worsen altitude sickness.

Learn the correct breathing technique: Exercise tests have shown that abdominal breathing is more regular and rhythmic than chest breathing, and visitors can place their hands on their hips when walking or climbing, so that the muscles of the arms, collarbone, shoulder blades and the trunk above the waist can be used as auxiliary breathing to increase the mobility of the respiratory system.

When you first arrive at the plateau, you should avoid strenuous activities and emotional excitement, and avoid taking hot baths, so as not to speed up the body's metabolism and aggravate hypoxia, resulting in pulmonary edema.

Adhere to the principles of a diet high in sugar, high in plant protein and low in fat. Sugars provide rapid calories, adapt to high-intensity activities, and increase oxygen exchange. Excess fat and animal protein can worsen altitude sickness.

Altitude sickness can easily lead to insomnia, so you can take diazepam tablets appropriately to ensure adequate sleep.

In addition, people under the age of 16 and over 60 years old, people with anemia, diabetes, serious cardiovascular and cerebrovascular diseases and chronic lung diseases, patients with mental diseases and pregnant women are not suitable for highland tourism.

UV protection! Remember to protect yourself from the sun!

The temperature difference between day and night on the plateau is large, remember to keep warm!

If you don't live in the altitude, you may not be used to the altitude environment and will have altitude sickness, remember to bring a packet of oxygen!

UV protection to overcome altitude reactions!