"Oh my God, how long will it take?"

In the hotel, Yao Jun collapsed on the bed, took off his shoes, and walked down all day, his feet were tired and swollen, so that he just wanted to sleep well.

"Huo, put your shoes outside, why do they smell so big?" Bi Fang slapped his nose, he hadn't smelled this smell for a long time, and immediately pulled Yao Jun up from the bed and asked him to put his shoes out of the window.

"As for it?" Yao Jun got up awkwardly and placed his shoes and socks outside the house.

Bi Fang shook his head helplessly: "You are not the only one here, and my nose is much more sensitive than ordinary people, and I can't stand it." ”

It's all in the mountains, it's said to be a hotel, but it's actually a few small earthen houses, don't think about a single compartment or anything, a room is full of earthen kang, and it can sleep at least four people.

At this time, Bi Fang and the others were gathered in one room, and the guide and several others were in another room, waiting for the owner of the house to bring dinner.

Bi Fang picked up a hot towel and washed his face, and then carried Xiao Mazha and everyone to sit in the yard to roast the fire, the temperature in the mountains fluctuated greatly, although the weather was still a little hot at noon, but at night, it had begun to become cold, and even had to put on a thin cotton jacket.

Waiting for his fingers to warm up, Bi Fang said: "Today is the first day for everyone to walk, everyone's speed is different, resulting in a long line, how to adjust the appropriate pace will be the subject we will study tonight, does anyone feel that they can't keep up today?" Or can you keep up, but feel particularly tired? To tell you the truth, tell me as soon as possible if there is a reaction, although the possibility of altitude sickness at a position of three thousand meters is not great, but it is not nothing, and the lord, I didn't hear the words that you want to rest for a day today, don't hold on. ”

Attenborough laughed: "You think too much, but I have always been at the front of the team, whether it is mountains or rainforests, I have hiked more than far, don't underestimate me, I hikked twelve kilometers on the grassland a while ago." ”

Seeing that there was no problem with the lord, and even his face was flushed, Bi Yi looked at Wang Yongbo and the others: "What about you?" ”

Everyone shook their heads, only Wang Yongbo scratched his head: "I can't keep up with my walk today, and my heart feels weird, like being pinched by a hand, is it a precursor to mountain reaction?" ”

Bi Fang frowned: "What about you, do you also have this reaction?" ”

Everyone shook their heads, but Jarrett and the photographer on the side raised their hands, indeed, they didn't react just now, but now that they think about it, it seems that they have this reaction.

These people have all had a physical examination before they came, and they are not in any physical condition.

"It could be a precursor."

Wang Yongbo and the others were stunned for a moment, and then they became worried, they actually had altitude sickness at 3,000 meters? What to do next?

"It's okay, since the physical examination is fine, then there is no need to worry too much, as long as there is no disease, most people have no problem with three or four thousand meters, and many people are just psychological reactions, I suspect that you are just a little overactive today, plus from one thousand meters to three thousand meters is a direct helicopter, the altitude increase is a little fast, and you are not fully adapted." It would be nice to have a good night's rest. ”

Wang Yongbo is a little wide, but not to the point of fat, as for Jarrett and the photographer, Bi Fang suspects that the equipment is too heavy, because to carry the equipment, even if there are livestock to help, each of them has at least brought nearly five catties of weight, and the high reaction is probably caused by too much exercise.

After thinking for a while, Bi Fang had a plan: "In this way, tomorrow I will ask Rob to find two porters to help you carry your backpack, you eat more cheese and chocolate tonight, high-calorie food is good against high, wait a while and let Rob buy some water, and set off early tomorrow morning, you will always drink water, at least drink enough 4L of water, Nongfu Spring or something, take a small sip of it, and keep the frequency of wanting to go to the toilet every half an hour." That's probably fine. ”

"Drink water?" Wang Yongbo was stunned, "Does it work?" ”

The audience in the live broadcast room is also very curious, can you still understand finding someone to carry things in front of you, and drinking water can treat high reaction?

[Isn't this a big water ratio? 】

[I remember that there is no medicine to take for high reactions? 】

[Yes, isn't that what Rhodiola is?] 】

Unexpectedly, Bi Fang shook his head directly: "It's useless, those drugs really don't work with water, in fact, most of the anti-hypertensive drugs are placebos, which may be able to slow down high reaction, but there are no clinical trials to prove it, as for Rhodiola Rosea, so far I haven't seen authoritative scientific arguments, but the Olympics listed it as a doping ban." At most, the mental malaise that occurs in the presence of altitude sickness has a certain effect. ”

"Also, do you think the oxygen levels at high altitudes are lower?"

Bi Fang looked at everyone and found that everyone nodded, and everyone thought so.

The lord was also surprised: "Isn't it?" Isn't altitude sickness caused by the thinning of oxygen in the air? ”

"Wrong" Bi Fang shook his head again, this was the second time he shook his head in a short period of time, "From sea level to 100,000 meters in the air, the content of oxygen in the air is about 21%. ”

As soon as these words came out, all four were shocked.

Isn't this a common perception?

[Is the old party also high (funny), his consciousness is no longer clear. 】

Bi Fang rolled his eyes, his current maximum oxygen uptake is at least eighty or more, such a person runs to an altitude of three thousand meters to have altitude sickness, unless he has heart disease, blood disease, cerebrovascular disease, plus all kinds of respiratory diseases, epilepsy, schizophrenia and uncontrolled diabetes, many debuffs are at the same time, it is possible to have a high reaction.

"There is no lack of oxygen in the air of the plateau! It is the lack of oxygen in the plateau. Have you ever flown on a plane? Its engine is essentially an internal combustion engine, if the plateau environment is 'lack of oxygen', then the aircraft engine can not burn oil normally to produce power to support the flight, and the passengers in the cabin will also have the risk of suffocation, and in fact, thousands of passengers fly at an altitude of 10,000 meters every day on a civil aviation plane is very safe. If the oxygen content in the plain area is 21%, in the high altitude area, the oxygen content is also 21% in most of the time, which means that there is no lack of oxygen in the atmosphere. The oxygen ratio does not change at all. ”

"Then how can it be high-back?"

"It's air pressure." Bi Fang did not play dumb riddles, and gave the reason bluntly, "At an altitude of 4,270 meters above sea level, the oxygen pressure is only 58% of the sea level. So, although the relative proportion of oxygen in the atmosphere has not changed, the absolute amount of oxygen has become smaller due to the thinning of the air, resulting in a lack of oxygen. ”

"When we go to the plateau, the demand for oxygen is the same as that of the plain, and the lower absolute oxygen amount of the plateau means that we need to breathe more air to get oxygen, and our breathing and heartbeat must be accelerated, and the amount of oxygen that can be obtained by one breath in the plain is two breaths on the plateau."

The effect of increasing the maximum oxygen uptake is that the utilization rate of oxygen is higher, and others need to breathe many times on the plateau to maintain oxygen intake, but Bi Fang is still enough once, and the only difference is probably that the chest cavity will be more dilated.

"It's easy to consume water when you breathe, and I told people in the desert that it's best to breathe through your nose rather than your mouth, so that you lose less water. Because the respiratory rate and amplitude are greater, we will lose a lot of water, making us more dehydrated than in the plains, and at the same time, because of the increase in lung activity and heart activity, we have to consume a lot of water, and the lack of water can easily lead to a decrease in blood flow and a decrease in the amount of oxygen transported inside, and if we do not replenish water in time, the consequences will be very serious. ”

Because of the cold and lack of oxygen, the plateau will dull people's brains, and when they react to their lack of oxygen, the consequences are already very serious, which is the so-called high reaction.

"Therefore, drinking water can effectively alleviate high reaction, this thing is better than medicine."

[Awesome, the knife cuts the butt, it's an eye-opener! ] 】

[Heifer handstand, bullish]

[Who the fuck did you learn your aftermath from?] 】

Just as everyone's eyes were opened, the door suddenly opened, and a black-faced Sherpa man came in with several large plates.

"Ho! Finally able to eat! ”

Yao Jun jumped up from the bed and couldn't wait to come to the table, he was dying of hunger after a day's walk today.

"Eat more, we are now in Fakting, which is 2610 meters above the sea, at the halfway point from Lukla to Nanchi, and there is still a long way to go tomorrow, so we need to eat enough."

Bi Fang picked up the chopsticks and handed them to everyone, the food on the table was not unusual, all of them were some fried noodles, fried rice, noodle soup, steamed buns, etc., plus spaghetti and pizza.

"In the past, most of the people who took the EBC line were white people from Ouchou, but in recent years, the number of people from China has gradually increased. There are a lot of Chinese food in the inns and inns along the line, such as dumplings and noodles, and chopsticks, which can be regarded as catching up with the good times, otherwise we can only eat Western food now, or the kind that we grasp by hand. ”

Because of hunger, everyone didn't care too much about the image, picked up chopsticks and knives and forks and started eating.

Yao Jun on the side stopped the boss: "Boss, I see that you seem to have a WiFi signal here, can you tell me the password?" ”

The boss wiped his hands and smiled, his weather-beaten face was full of wrinkles, very honest, but unfortunately what he said was not honest, and stretched out three fingers: "300 rupees." ”

Yao Jun was stunned: "? Does this cost money? Okay, okay, tell me the password, I'm out! Let everyone use WiFi! ”

Unexpectedly, the boss shook his head again: "Three hundred for one person, I'll enter the password?" ”

Yao Jun: "......"

"Hahaha, forget it, Yao Jun." Bi Fang patted him on the shoulder, "There's no need, don't expect how good the Wifi speed can be in a place where even the power is unstable." Let's be honest and practical traffic. ”

After everyone finished dinner, Bi Fang summarized the problems and points to pay attention to.

"Whether a person is hypoxic or not cannot be based on feeling, because the brain and heart are very tolerant, and it is easy not to feel it, it has to be measured. Observation of lip color is measurement, is visual inspection, lip color represents arterial blood color, purple, black indicates arterial blood oxygen is not saturated, the body is hypoxic. When you climb Mount Everest, you should pay attention to it, don't go wrong, the most convenient thing is to use an oximeter meter, and you can find out the truth in 10 seconds. I see Rob has it there, and I'll take you to get one tomorrow. ”

"The rest is the hiking problem, I will call you in the morning, go to bed early tonight, and tomorrow at half past seven we will set off from 2,610 meters in Fakting to 3,440 meters in Nanchi Bazaar. I will climb 800 meters, and I will teach you some of the essentials of mountaineering. ”

In the evening, Bi Fang turned off the live broadcast, went out to exercise for a while, and then returned to the room to rest.

Waiting until the next morning, Bi Fang opened his eyes, this was the first time he slept in bed in the live broadcast, no wonder, but he quickly got up from the bed, pushed open the door after getting dressed, and opened the live broadcast.

The drone took off immediately.

[So early? It's only half past six, right? 】

[It's not dawn yet, is it? 】

"Because of the longitude, Mount Everest usually doesn't dawn until seven o'clock in spring and summer." Bi Fang spat out a mouthful of cold mist, which showed that the temperature was still very low in the morning, and frost could be clearly seen on the leaves on the side.

"Today is April 21st, I expect to reach the Everest base camp in six days, and then I will have less than a month to train, it depends on the weather forecast of the Meteorological Bureau, if the time appears early, it may not even be half a month, so I have to increase the intensity of training, so I got up early in the morning."

Half an hour later, a sweaty Bi Fang returned to the house, boiled some water, mixed some cold water, and then went to the yard, took off his clothes, let the drone avoid the view, and poured hot water on his head.

"Whew! Much more comfortable. Bi Fang shook the towel and wiped his face, his blood vessels dilated after exercise, and he was not afraid of the cold at all, not to mention that it was not cold, it was still above zero.

[I rub it, isn't it cold?] 】

[If the drone flies to the right, I can only see one head.] 】

[It's too fierce, is this a real man? ] Take a shower outside. 】

The sound of water outside the house quickly attracted everyone's attention, and at this time the sky was also bright, Yao Jun blinked, yawned and got up, and then saw Bi Fang, who was covered in mist, walking in from outside the house.

Yao Jun rubbed his eyes vigorously and said in shock: ", are you going to spontaneously combust?" Why is there smoke all over your body? ”

"Take a shower, hurry up, and this, you all use it." Bi Fang put his clothes on and threw out a small bottle.

"What is this?"

The crowd approached and found that it was an alcohol spray.

"Alcohol spray, wait a minute, you guys go wash your feet, and then spray this, especially the toes and heels, and apply a little alcohol after drying to increase the tolerance of your feet, and they won't be so tired. I don't tell him about ordinary people. ”

Yao Jun didn't understand, but he was shocked, this was the first time he knew that there was such a thing: "What is the reason for this?" ”

"It's pain-relieving, and it will have a chemical reaction with the leather, making the shoes softer, hiking shoes are generally new, and we wear them too, the friction of new shoes is the largest, but I haven't adapted to the easy grinding of feet, and you will be soft when you apply some alcohol."

Yao Jun looked excited when he heard this, and immediately came to the bed to start the experiment.

"Anyway, you didn't say it earlier? I grinded all the way yesterday, I forgot, I didn't remember when the hotel came out that day, and then I left, so there was no need to bother. ”

"Grass!"

(Let's see the original, gentlemen.) A book is only worth a few bucks. ）