Consider the question:
After being declared dead, would you be willing to freeze your body and wait for fifty years or more to "resurrect"?
Someone has already done this.
1. It takes 55 hours: post-mortem freezing for female lung cancer patients
Chongqing female writer Du Hong is one of the editors of the science fiction novel "Three-Body". After reading "Three-Body", she also hopes to be frozen after her death. After Du Hong passed away from cancer, her daughter chose the Alcor Life Continuation Foundation in the United States through various contacts.
Du Hong's family spent 120,000 US dollars (about 750,000 yuan) to freeze their brains. Du Hong's daughter mentioned that a large part of these expenses will be used for future defrosting and resurrection. After 55 hours, Du Hong became the first person in China to participate in cryopreservation.
Du Hong and her daughter Tuyuan Network
The first case of freezing in China was called Zhan Wenlian. She was a woman who worked in a bank and was also a lung cancer patient. Her freezing process was completed in Yinfeng, Shandong.
On May 8, 2017, Zhan Wenlian, who was only 49 years old, died of lung cancer. Before her death, she made an important decision-to perform cryosurgery after her death.
In the early morning of May 8, Zhan Wenlian stopped breathing and heartbeat in the hospital bed, and the doctor declared clinical death. Within 2 minutes, the clinical expert quickly injected anticoagulant and antioxidant drugs into her body and injected ice saltwater into the body as quickly as possible to physically cool down, and at the same time performed tracheal intubation and cardiopulmonary support equipment. It can protect the body's blood and oxygen supply.
Immediately afterward, Zhan Wenlian was transferred to the Cryogenic Medicine Research Center of Yinfeng Research Institute, where she will undergo perfusion replacement surgery. This is an extremely critical step. It is necessary to replace the whole body's blood with cryoprotective agents to reduce freezing damage caused by cryopreservation.
Image source network of liquid nitrogen tanks that preserved the remains of Zhanwenlian
The clinical staff of Shandong Yinfeng Bioengineering Group and Shandong University Qilu Hospital lowered Zhan Wenlian's body temperature to about 18°C, and then slowly injected transparent antifreeze into her body. In the end, Zhan Wenlian's body was frozen in a 2,000-liter liquid nitrogen tank with a temperature of minus 196°C. It has been stored for more than 3 years.
In this way, Zhan Wenlian became the first person to freeze and wait for resurrection in China and plans to "resurrect" in 50 years .
I used to think that the magical freezing technique that can only be seen in the book, I did not expect it to exist in reality. How much do you know about freezing technique?
2. How amazing is "freezing"?
*origin
The United States was the country where "freezing people" first appeared, but it has been subject to great controversy. On the one hand, religious people resisted. They felt that a person's soul could not be frozen, and resurrection was against the will of God; aspects, freezing techniques have been called into question in the scientific rigor .
The concept of cryosurgery appeared very early. In the early 1960s, Robert Edinger was hailed as the "father of cryonics." In his book "The Prospect of Immortality", many plants and low fact that animals are resurrected after low-temperature dormancy.
He believes that death is a gradual process, and if the body is frozen fast enough, there must be a chance that it can be reversed. After his book was published, it attracted a large number of fanatical cryonics supporters. However, medical scientists believe that freezing is different from low-temperature hibernation, freezing is to stop life in its original state, and hibernation has basic metabolism.
In any case, Edinger's vision was implemented for the first time in January 1967.
*The story of James Bedford, the world's first frozen man
The world's first cryo-human experimenter is called James Bedford, an emeritus professor at the University of California, USA. He is a supporter of cryonics and the first person to sign a cryo-experiment agreement.
After the publication of Robert Edinger's "Prospects of Immortality", many readers were deeply fascinated. Among them were James, a patient with lung cancer who was ill in bed, and 29-year-old electrician Robert Nelson (later a researcher in cryosurgery ). In June 1965, Nelson sent James an invitation to try freezing, and James finally accepted the invitation. He hoped that he would still have a chance.
In 1967, James Bedford set aside $100,000 in his will to freeze his body. In order to ensure the freezing effect, James also paid 4200 US dollars to purchase sufficient liquid nitrogen and steel tanks.
James (left) and Nelson (right)/Tuyuan Network
Within a few hours after James Bedford's death, cryosurgery researcher Robert Nelson and his medical team froze James. However, the cryosurgery at that time seems to be imperfect and even messy. James Bedford’s blood was not completely drained, he was simply injected with antifreeze, then placed in a thermal container filled with dry ice, and finally placed in a Dewar container filled with liquid nitrogen.
Fifteen years later, because the freezing company that stored Bedford declared bankruptcy, his body was tossed around several times, and finally placed in the Alcor Life Extension Foundation in Scottsdale, Arizona. In 2017, Nelson announced that Bedford would be resurrected, but then there was no news. Whether the experiment has not started or has failed, people have no idea.
After reading the freezing situation in Bedford, many people want to know, can freezing people really be resurrected? How long will it take to resurrect?
3. Will the frozen man really be resurrected in 50 years?
At present, cryopreservation of human bodies is still scientific research, and so far there has not been a frozen human being recovered. From a scientific point of view, the urgent problem for freezing people is not surface freezing, but cell thawing.
Although modern technology continues to advance, it is difficult for the body to recover when it is thawed. Because freezing will cause human cell tissue necrosis, cell membrane shedding, and cracks between some tissues, these are huge problems that hinder the recovery of frozen people.
However, scientists believe that after clinical death, the brain function can be preserved to the maximum in theory. When the human body is resuscitated in the future, DNA repair and stem cell technology can be used to repair the human body to achieve the purpose of resurrection.
Michael Perry, head of nursing services at Alcor Life Continuation Fund, believes that he is optimistic about the recovery time of frozen humans. He believes that it will take 50 to 100 years to realize the resurrection of frozen humans.
Do you believe that future science can revive frozen people? If you have a chance, are you willing to freeze yourself?
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