Lin Su was wearing a set of long clothes and trousers, but such a single coat was not much stronger than a piece of paper in the face of a cold current of minus 50 degrees. Pen % fun % Pavilion www.biquge.info

Feeling the pinprick-like stinging pain coming from his skin, Lin Su immediately shivered and produced heat. The astonishing heat quickly melted the thin ice on the surface of his body, but the continuous low temperature air flow instantly sucked the heat from Lin Su's body surface.

It only lasted for more than ten seconds, and Lin Su, who was out of breath, had to stop trembling and producing heat.

At this altitude, the oxygen level has been reduced to less than half of the ground, and shivering heat production consumes a lot of oxygen and stamina. In the current dangerous environment, Lin Su must retain enough physical strength to deal with possible crises.

Stopping the trembling and heat, the frost covered Lin Su's body again, and he felt even colder than just now.

This was the first time Lin Su had truly experienced the horror of nature, and with his current strength, wanting to fight against this great power of heaven and earth with his own strength was tantamount to a grasshopper shaking a tree.

As the saying goes, heaven and earth are not benevolent to all things as dogs, nature treats every life living in it equally, since it can't resist, then it can only work hard to adapt!

Even in the environment of low temperature, low air pressure, and low oxygen, it is necessary to make the body function not feel the pressure, and just when Lin Su was trying to adapt to the environment with all his heart, his body's instinct allowed the food cells to work.

Try to keep the oxygen in your lungs constant, and stabilize the oxygen level in your blood by maintaining the oxygen level. In this way, the oxygen consumed by each cell due to respiration is greatly reduced, and even a small amount of oxygen can produce a large amount of energy, resulting in a gourmet cell with less oxygen consumption.

Not only that, but the food cells in Lin Su's body began to produce a special antifreeze protein. Fish living in extreme cold weather are able to survive in cold water below the freezing point of their blood because of this special antifreeze protein.

Although antifreeze proteins can produce similar effects to car antifreeze, the two work in completely different ways.

Antifreeze is designed to lower the freezing point of liquids, while antifreeze proteins bind to tiny ice crystals to prevent them from growing and puncturing cells.

Although the temperature outside has not changed, Lin Su's physical activities have been much smoother. However, at this time, Lin Su had no time to take care of the changes in his body, because a new round of crisis had arrived.

Countless ice cubes with a diameter of more than three meters rained down on Lin Su and them, and these huge hailstones crackled into the sky vines, a deafening roar and as if someone was firing a cannon in Lin Su's ears.

"Knock on the dishes and chopsticks!" A dragon condensed a medium-sized chopstick and shattered a huge hailstone that fell overhead.

"The tongue of the machine gun. The tongues of the three tigers rained down on the surface of a hailstone, and the ice cubes like small houses slammed into powder.

"Ice blades, one cut in two. Lin Su swung a slash with the ice blade in his hand, and the ice cubes that were close at hand were split in half and slid down from Lin Su's side.

"Don't bother with these hailstones, let's go into the cumulonimbus clouds. Yilong shouted and rushed out.

The closer they got to the position of the cumulonimbus clouds, the less hail there became, but Lin Su's nerves tightened even more.

Nearly tens of thousands of meters in length, the sky vine connects the heavens and the earth, and when surrounded by cumulonimbus clouds, this vine becomes a giant lightning rod. There was a snap and a bolt of lightning struck a few meters beside Lin Su and them, if they hadn't dodged in advance, they would definitely have been hit by the falling lightning.

Several times lightning fell around Lin Su and them, looking at the deep pit blasted by the tough sky vines by the falling thunder, Lin Su felt that death was beckoning to him not far away.

Guarding against the fickle thunder and lightning along the way, Lin Su and the three of them rushed into the cumulonimbus clouds one after another.

The originally dim sky had become pitch black at this time, and when they couldn't see anything, they couldn't tell where it was a place to stay, whether it was Yilong or Lin Su, they could only grope their way forward with the touch under their feet.

The violent air currents in the cumulonimbus clouds suddenly increased by several levels, and the turbulent air currents blew irregularly from all directions to attack Lin Su and them who broke into the forbidden land.

In order not to be blown away by the strong wind, Lin Su's fingers were like nails stuck into the interior of the sky vines.

Surrounded by a terrifying turbulence comparable to a tornado, once caught in it, it is like entering a blender, and it is impossible to distinguish between up and down and left and right inside the dark clouds, and it is simply impossible to return to the sky vines.

At this time, Lin Su felt as if a rope was tied around his waist, and there were dozens of strong men at the other end of the rope pulling desperately. Relying on the strength of his fingers alone could no longer fix his body, Lin Su inserted his entire arm into the sky vines.

"Whirring ......"

The frantic airflow made the air around Lin Su's body thinner, and he could only breathe desperately if he wanted to get more oxygen. However, every time he inhaled the cold air, it would enter his lungs, and Lin Su's nasal cavity and lungs were painful like pins and needles.

In such a harsh environment, ordinary breathing methods can cause serious damage to the body instead of doing anything.

Lin Su forced himself to calm down, what he was facing now was not an enemy but a cruel nature, as long as he calmed down, he would definitely be able to think of a way to overcome it.

In order to ensure the normal functioning of the body, Lin Su must find a way to retain every trace of oxygen and only excrete carbon dioxide from the body.

Lin Su stopped exhaling through the throat in the upper part of the trachea when he exhaled, and in order to retain body temperature, water, and oxygen in his body, he did not continue to exhale out.

Of course, the cold of nearly -80 degrees Celsius will rush into the mouth and nose. Because carbon dioxide has the highest melting and boiling points, the cold air will be the first to freeze the carbon dioxide trapped in the exhaled air in the mouth.

At this moment, Lin Su exhaled the frozen carbon dioxide, and then inhaled the remaining oxygen in the exhalation.

Using this breathing method, which could keep oxygen, moisture, and body temperature as they were, Lin Su pulled himself back from the edge of his confusion.

Although it is not very smooth for the time being, Lin Su has initially adapted to this turbulent and low temperature environment through the original breathing method.

With the faint light of lightning, Lin Su saw two extremely vague figures. After confirming that Yilong and Sanhu were fine, Lin Su's heart relaxed for the time being.

Lightning was still raging around, and clinging to the sky vines all the time was clearly not a long-term solution.

At this moment, a loud birdsong overpowered the roaring thunder and reached Lin Su's ears, and a moving light cluster appeared in the dark cumulonimbus clouds.

The light cluster was getting closer and closer, and it turned out to be a bird shining with golden light.