Can man freeze in 100 years and bring it back to life?

Credit to https://ejoy-english.com/

How are humans imagining the distant future? Flying cars, a journey to the far corners of outer space, and of course a cure for every disease. Who wouldn't want to experience such a world? However, most of us simply don't have a long enough lifespan to wait for such a future.

But fortunately, scientists have already figured out a way to cheat time cryopreservation. This is a special way of refrigerating the human body after which a person can return to life. Well, theoretically, what would happen with the body if it was frozen for many years, so I decided to carefully examine this issue.

And well, here's what I have for you. How did people first come up with the idea of freezing their bodies, it seems that hibernating animals are the ones to blame. This includes different rodents and hedgehogs as well as bears. The concept is simple.

When it gets cold and there's less available food, the animals immerse themselves into suspended animation, their metabolism and life processes slow down and body temperature drops significantly. For example, in the Arctic ground squirrel, ṣṣcan drop to about minus four degrees Celsius or about 25 Fahrenheit in the abdominal cavity. However, these small rodents keep their heads and necks warm.

So when hibernation comes to an end, these squirrels remain fully healthy and feel great. An even more interesting example is the word frog. They're widespread in North America and in general, are used to cold weather. Moreover, every year these frogs freeze and then return to life. And this isn't even a metaphor.

The word frog has a very unusual life cycle, it spends every winter in a frozen state. For two to three months, its body temperature remains at six degrees Celsius or about 21 Fahrenheit. At the same time, the frog’s bodily functions stop, it doesn't breathe, and its heart stops beating.

About 60% of the water inside itself freezes. In the spring, the frog thaws turn on his heart, warms up, and begins to live anew. How is this even possible? Scientists have found that in wood frogs before hibernation, their liver increases one and a half times, and glycogen’s level increases threefold.

The freezing process itself occurs slowly and during this period, the liver turns glycogen into glucose. This in turn allows cells to maintain their structure. But could a person survive such an extreme freeze, the human body is much more complicated. You can't just put a person in a freezer and then bring them out and hope they'll become themselves again.

First of all, because of the characteristics of the blood. With a serious decrease in temperature, the blood like many other fluids begins to thicken and gradually freezes, it turns into bloody ice. And while you may be thinking that this will be a good title for a thriller, I'll first explain one simple thing.

The blood itself when it's turned into ice crystals is already dangerous enough. And still, we plan to unfreeze this person. Here's where the problems begin. When thawing these crystals will create many micro-cuts in the human circulatory system. It doesn't matter how much time has passed a year, 10 or 100 years. Absolutely all of the arteries and capillaries and veins will suffer and the organs to not mention brain death.

Such damage will lead to internal bleeding and eventually to death. in general. to freeze a person you need to come up with something more advanced than an ordinary freezer. Anything that would allow you to painlessly circumvent the laws of nature. As such, people invented cryonics.

This is low-temperature freezing that aims to preserve cells, tissues, organs, other biological objects, and the whole body. Animals can also be frozen. The main thing is to restore bodily functions after thawing. As a rule cryopreservation is carried out at very low temperatures about minus 80 degrees Celsius or about minus 112 Fahrenheit using dry ice, or at minus 196 Celsius that's minus 321 Fahrenheit using liquid nitrogen. But why so much or rather, why so low?

In cryopreservation, any chemical activity that could harm biological material is stopped. Thanks to this living objects can be preserved for as long as we want. Sounds good, right? First, scientists tried this on hamsters, then on individual cells of the human body, and all sorts of important fluids.

Finally, in 1967, it was a person's turn. The first human body to be frozen in hopes of a future rebirth was James Bedford. He suffered from kidney cancer and therefore agreed to freeze his body after death. At some point in the future, will we completely cure all forms of cancer until this happens that the Bedford body is cryopreserved at the Alcor life extension foundation? But that was only the beginning.

By 2019, more than 400 people have undergone cryopreservation in the United States, another 1500 have signed the necessary documents and are ready to freeze their bodies after death. Yes, by law, only a person after clinical death can undergo cryopreservation, that is, their heart cannot be beating before the brain cells have time to die. They're frozen with the help of vitrification, a special procedure that eliminates the formation of ice.

Though legally, every frozen person is considered dead, no one knows if they can be revived. Nevertheless, more and more living people are starting to think about it. To date, scientists have no guarantees that a frozen person can be revived.

On the other hand, if a person is buried, it certainly would never be possible. The choice in general is obvious. However, cryonics can be expensive. In 2018, the preparation and storage of a person under freezing conditions ranged from 28,000 to 200,000. US dollars. It's not surprising that quite wealthy people are usually the ones who chose to undergo this process.

But what will happen to a person who will have spent many years in a freezing state, we can only speculate theoretically, a few years ago, scientists managed to unfreeze a rabbit's brain. Even after several weeks of freezing the important connections between the neurons on which brain activity depends were intact. But is it possible to compare the brain of a rabbit to that of a whole person, I doubt it.

Additionally, skeptics believe that even freezing the body in liquid nitrogen would lead to the destruction of cells of many tissues due to ice crystals. How that would end you already know for certain there's no possibility of resurrection in such a situation. But proponents of cryonics have a way of deceiving nature and the laws of physics.

For example, by changing most of the fluids in the body to solutions of special substances, these solutions would not turn into crystals, which means that the body would not be damaged. Scientists also acknowledge that after thawing, the human brain will need major repairs, it'll be necessary to repair the damaged areas because there will certainly be such problems.

And it's still unknown what will happen to an individual's personality after they come out of this frozen state? Will they remain themselves will they be completely the same? Okay, let's set the medical side of the issue aside for a moment and imagine that the frosting goes perfectly.

A human who once lived hundreds of years ago will then wake up in a whole new world, it's unlikely that they will simply open their eyes and everything will be fine from the start. They'll have to build their life from scratch and get used to new technologies and rules.

Who knows maybe waking up after so many years wouldn't be so enjoyable. Whatever the case, all of this can be discussed only in theory. So far, humanity isn't very close to resurrecting the dead. But let's just give it some time. I don't think it'll belong.

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