Do you want to come back from the dead? Do you want to wake up after being frozen for 100 years like Captain America in the Avengers? Russian company freezes remains awaiting resuscitation, freezing the whole body only costs 2.2 million rubles, too expensive? Then 80,000 to freeze a brain first. According to the company they to freeze dead people, the deceased must be carried out 36 hours after death, the deceased blood vessels will be filled with chemical preservatives to prevent organ frostbite. The remains are then stored in liquid nitrogen at -196 degrees, waiting for future resuscitation. The company has frozen 54 people so far and has signed up more than 300 other clients.
While human freezing technology may sound a bit alarmist at first glance, it is at least a significant improvement over the technology used for Egyptian mummies thousands of years ago, and in some cases there is technology to restore the use of some organs after a certain period of time after they have been frozen. As for the technology we're talking about today, modern medicine can't do it, but we can only hope that in the future it will be possible - after all, our current medical technology has seemed unattainable in the past.
We take a look at China's first human freezing technology means how to carry out
One, cryoprotectant
Tissues and organs can not be frozen directly, the formation of water in the cell ice will break the cell, how to avoid the occurrence of this situation is a deep cryogenic medicine to solve the problem. Cryoprotective fluid is to displace the water and hold up the cells from rupturing.
Two, preparation
Injection of drugs: injection of anticoagulant, antioxidant, antimicrobial drugs, central nervous system nutrition and other drugs to prevent blood clotting.
Physical cooling: rapid infusion of saline through the circulatory system for physical cooling.
Maintenance of physiologic function: maintenance of oxygen and blood supply through cardiopulmonary support equipment.
Three, perfusion
First, diluted protective fluid is used to gradually replace the blood remaining in the remains, the common artery and common vein in the neck of the remains are opened to form a fluid input circuit, the protective fluid is inputted, and finally the blood remaining in the head is replaced.
Fourth, freezing
Preliminary freezing: After the perfusion is completed, the body is gradually cooled down using -60℃ dry ice, and finally kept in an ice coffin at about -40℃, followed by separating the head of the body and keeping it in a special container of liquid nitrogen at -196℃.
V. Resurrection
According to the optimistic estimates of Alcor scientists, science and technology in 50 years' time may make it possible to thaw the head of a frozen person and rebuild the body -- complete with resurrection.
After the brain stops working and is medically defined as "physically dead," if it can be resurrected later, will its personal memories and personality be preserved?
American psychophysiologist Dr. Arthur C. Guiten's book "Textbook of Medical Physiology" mentions that memory is not determined by the continuous activity of the nervous system, and that it is possible to completely inactivate the brain through freezing technology or anesthesia, etc. When the brain is activated again, the memories stored in the brain before can be preserved.
In layman's terms, our brains are slowed down by means of cryogenic freezing, anesthesia, etc. Brain activity is an important example of how specialized surgery, coupled with cryogenic freezing, can cause the brain to temporarily shut down, and then restart the surgery for a period of time to resuscitate it. A simple heart bar stop can also cause brain activity to stop for a period of 40-50 seconds, and the heart can be repeated several times for such a long period of time without permanent damage. Anesthetics such as barbiturates are capable of stopping the EEG for hours at a time while allowing for late recovery, and for pharmacological elimination of prolonged brain activity patients do not go blank after experiencing unconsciousness. It is clear that humans do not need to run continuously like a computer chip, and that our brains keep long-term memories in physical constructs rather than transient preservation of electrical patterns.
Body freezing technology
Take a real-life example: once there was a Norwegian skier named Anna Bagenholm, in his skiing accidentally fell into the middle of the icy river, he was trapped in the river for 40 minutes, *** two hours without breathing and heart bars, he was rushed to the hospital with no signs of life on the electrocardiogram and electroencephalogram. But miraculously he was eventually revived and his memory was not impaired and he still remembers what happened. This case also illustrates that we do not need continuous bioelectricity to maintain our long-term memory, thoughts and consciousness.
When it comes to the future, our lives have changed dramatically since the 21st century. Going back to a time 100 years ago when a fever and cold could kill you, can you imagine that heart transplants and even "head-swapping," which was a fantasy at the time, could be successfully accomplished in medicine? You can imagine that nowadays we can successfully perform heart transplants and even "head transplantation", which was a fantasy at that time. In the next 50-100 years, the progress of human freezing technology is likely to realize the resurrection of the brain, and then we will see like Captain America 100 years ago people standing in front of us what kind of mood .....
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