Cryonic preservation freezes human bodies at -196°C (-320.8°F) for future revival. This field, called cryogenics science, aims to pause life until medical advances can fix damage. Advocates hope freezing humans could let people wake up in the future, but there are big challenges.
Mainstream science sees cryonics as pseudoscience. After legal death, bodies are cooled quickly to avoid ice damage. Vitrification replaces blood with fluids that act like antifreeze, but experts say it’s not possible to revive humans yet.
Shannon Tessier, a cryobiologist, says freezing human tissue results in 0% success. This causes cell death before freezing even starts. Despite dreams of future revival, today’s reality shows no success.
This article looks into cryonic preservation’s science, ethical debates, and why experts warn against overestimating its chances.
Understanding Cryogenics Science
Cryogenics is all about how things act at cryogenic temperatures, much colder than your freezer. It looks at temperatures below -150°C. Here, metals get brittle, liquids freeze, and weird things happen.
Extreme cold science is key. It studies superconductors and superfluids. These are important for things like MRI machines.
Liquid nitrogen is central to this field. It boils at -196°C. It’s used in labs and medicine, like keeping biological samples alive in cryobiology.
Scientists study how cells can survive these cold temperatures. This helps improve how we store organs. On the other hand, low-temperature physics looks at superconductors. These materials lose all electrical resistance at very cold temperatures.
These superconductors are used in particle accelerators and even in levitating trains.
Everyday uses of cryogenics include freezing food without harming cells. It’s also used to treat skin problems with liquid nitrogen. Cryonics, which aims to preserve humans, is also powered by this science. It brings lab discoveries to life in our world.
How Cryonics Works
Cryonic suspension starts right after legal death. Teams quickly begin cryonic procedures to cool the body. They use cryoprotectants, special fluids, to replace blood and prevent ice crystals.
This vitrification process turns tissues into a glass-like state. It avoids damage from freezing. Scientists like Gregory Fahy and Brian Wowk developed this method, replacing older freezing techniques.
After the body is injected with cryoprotectants, it’s cooled to -130°C (-202°F) in four hours. It’s then stored in liquid nitrogen tanks at -196°C (-320°F). These tanks can hold up to four whole bodies or six brain-only cases.
While preservation technology has improved, current methods cause cell damage. Scientists hope future breakthroughs will reverse this damage.
Cryonic suspension costs range from $50,000 for brain-only storage to $200,000 for whole-body preservation. Over 1,500 people in the U.S. have signed up for these procedures. Despite progress, challenges like tissue fractures during cooling remain. Families also pay annual fees to maintain storage.
The Science Behind Freezing Humans
Cryonic freezing tries to stop biological decay after death. But, it faces big challenges. Cells and tissues suffer extreme stress when cooling. Ice crystals can damage cell membranes, leading to tissue damage and loss of brain information.
Cryonicists believe that if brain structure is intact, we can recover identity. Legal death is different from information-theoretic death, where brain data is lost forever.
Those who support cryonics focus on saving the brain. By cooling bodies to -130°C in liquid nitrogen, places like Alcor and the Cryonics Institute try to slow down decay. They hope that even damaged brains can be restored to reveal identity in the future. But, critics say current methods can’t fully prevent brain damage.
Future breakthroughs in nanotechnology or AI might fix the damage. But, today’s science has no evidence. Cryonic freezing is seen as a step towards new technologies. The question is, does information-theoretic death really mean the end of life?
The Current State of Cryonics
Today, modern cryonics uses places like the Alcor Life Extension Foundation, the Cryonics Institute, KrioRus, and Tomorrow Biostasis. These cryopreservation facilities are found worldwide, with three in the U.S. and one in Russia. Alcor, started in 1976, has nearly 200 patients frozen at −196°C. KrioRus offers cheaper options in Russia.
Prices differ a lot. Tomorrow Biostasis asks for €200,000 for full-body freezing but has brain-only options for €75,000. Alcor has members who choose either whole-body or brain-only freezing. Dr. Stephen Coles picked brain-only, cooled to −140°C.
“Brain removal is no longer a barrier to modern cryonics,” says Tomorrow’s CEO Emil Kendziorra. He notes that more people are accepting of it.
“Neuropreservation aligns with long-term goals of advancing preservation science,” emphasizes Alcor’s research team.
New methods like vitrification prevent ice damage. In 2016 and 2018, scientists revived rabbit and pig brain structures. But, no human has been revived yet. Over 500 people are frozen worldwide, with 4,000+ waiting.
China’s Yinfeng Biological Group is investing $7M in organ preservation tech for transplant programs.
Even with progress, revival is just a theory. Ideas like 3D-printed organs or brain-computer interfaces are far off. Yet, with 1,500 Alcor members and growing interest, modern cryonics keeps growing. It offers hope and cautious optimism.
Legal and Ethical Considerations
Cryonics laws vary around the world, creating a mix of rules. In France, after death, bodies can only be buried or cremated. But, they can be sent abroad for freezing. Russia allows preservation for scientific study.
Legal issues come up when families disagree on what to do with a loved one’s body. This was seen in the Alcor Life Extension Foundation v. Richardson case. A court decided to follow the patient’s wish to be cryopreserved.
Ethical concerns focus on cost and who can access cryonics. Full-body cryopreservation can cost up to $200,000. This means only the rich can afford it, sparking debates about fairness.
Some say it’s unfair to let only the wealthy live forever. Bioethicist David Shaw compares this to Pascal’s Wager. He wonders if the risks are worth the chance of living again.
Legal contracts also raise questions. What happens if a cryonics company goes bankrupt? Who takes care of the bodies? KrioRus has 100-year contracts that keep extending, raising more questions.
Families may also disagree on what to do with a loved one’s body. This can lead to legal battles. These issues highlight the need for clear laws and guidelines in cryonics.
There are also worries about the impact on society. Bringing back billions of people could be very challenging. It could also cause psychological problems for those who wake up in a world they don’t know.
These problems show why we need better laws and guidelines. We must find a balance between new ideas and being responsible.
Success Stories and Challenges
James Bedford’s cryopreservation in 1967 was a major milestone in cryonics. His body is frozen at Alcor, a leading organization with over 1,300 members. Celebrities like Ted Williams and tech pioneer Hal Finney have also chosen cryonics, showing its growing appeal. But, these stories also bring both hope and uncertainty.
The success of cryonic revival depends on future technologies, like molecular nanotechnology. But, current methods face revival challenges. Neuroscientist Ken Hayworth points out that today’s procedures can damage brain structures needed for memory. Ice crystals form during cooling, causing cell damage that advanced methods struggle to overcome.
Alcor uses liquid nitrogen at -196°C, but no human brain has been revived yet. This leaves preservation success unproven. The high costs and risks of cryonics are also significant. Early companies sometimes failed, leading to thawed bodies. Alcor’s $220,000 full-body fee reflects the gamble: patients must wait decades for a possible revival, betting on future medical breakthroughs.
While advocates dream of a future cure for cancer or aging, the path is unclear. For now, cryonics balances ambition with unanswered questions.
The Future of Cryogenics
Advances in nanotechnology and future medicine are changing cryogenics. Scientists are working on tools to fix damaged tissues. They also aim to rebuild organs through tissue regeneration.
Companies like Tomorrow.Bio and the Cryonics Institute are making progress. They hope to make preservation reversible by 2028.
Speculative revival technologies like mind uploading offer hope. Early studies show promise. For example, vitrified rabbit kidneys worked after thawing, and rat kidneys revived fully after 100 days.
This progress suggests hope for human applications. Nanotechnology could repair cells at a microscopic level. Tissue regeneration might fix damaged organs.
Even though revival rates are currently 0%, labs are testing new methods. A 2023 study showed that kidneys could survive extreme cooling. This suggests slow but steady progress.
There are ongoing debates about ethics, but some believe that today’s “impossible” science could become reality. For example, heart transplants were once seen as fantasy but are now possible. Maybe one day, cryopreserved patients will benefit from such advancements.
Financial Aspects of Cryonics
Choosing cryonics means understanding the cryonics cost. This cost varies a lot, depending on who you choose. The Cryonics Institute charges $28,000 for basic cryopreservation financing. On the other hand, Alcor Life Extension Foundation asks for $200,000.
These prices cover the initial steps and long-term storage costs. They also include keeping the cryopreserved bodies in liquid nitrogen. Many people use life insurance funding to pay for these costs. They often name cryonics organizations as the beneficiaries of their policies.
Long-term storage costs are a big challenge for economic viability. Places like Alcor and the Cryonics Institute use patient care trusts to keep funds going for centuries. But, keeping facilities running for so long is hard, even with a lot of money.
Some patients set up trusts that last 50–200 years. This way, they balance their hope for revival with the reality of costs.
“Planning for revival requires more than today’s dollars—it demands foresight across generations.”
Life insurance funding makes paying upfront easier. But, keeping cryopreservation financing going for centuries is not proven. Trusts try to cover future costs, but the history of companies lasting 100 years is rare.
It’s important to have clear plans and steady funding. This way, we can meet long-term storage costs without risking failures in preservation.
Public Perception of Cryonics
Cryonics in media has shaped our views for decades, mixing truth with fiction. Movies like *Austin Powers* and TV shows often mention the Walt Disney myth. This myth says he was cryopreserved, but he was actually cremated in 1966. These stories spark curiosity but also spread myths about cryonics.
Surveys show most cryonics supporters are non-religious white men, but family involvement is growing. The Cryonics Institute has over 1,200 members worldwide, yet many are skeptical. Critics, like neuroscientist Clive Coen, call whole-body preservation “ridiculous.”
But supporters point to advances like Yale’s 2019 study on pig brains. This study revived cellular activity after death. These findings spark debate but haven’t changed public opinion much.
Myths about cryonics continue: no one is frozen “alive,” and revival technology is just a theory. The Alcor Life Extension Foundation and Cryonics Institute focus on hope for future medicine, not immortality. As debates go on, media keeps cryonics in the public eye, despite scientific challenges.
Scientific Research in Cryogenics
Advances in cryobiology research are making big strides, despite some skepticism. Now, organs can be preserved at -196°C for transplants. This is thanks to new methods like vitrification, which prevent ice damage.
Companies like Oxford Instruments are creating tools for these breakthroughs. But, mainstream science is taking a cautious approach.
Mainstream science sees progress but points out the challenges. The LHC’s cooling system is a great example of cryogenics’ precision. Yet, it’s not ready for human revival.
Superconductors in MRI machines and quantum computers also rely on cryogenics. But, human preservation is not proven yet.
Recent trials at the University of Minnesota have made big strides. They’ve kept kidneys alive for 72 hours, a huge improvement. But, scaling up to humans is a big challenge.
Breakthroughs in cryoprotectant chemistry offer hope for the future. But, mainstream researchers say we’re not there yet. They point out that current successes are in tissues, not whole bodies.
The Society for Cryobiology in 2018 also warned against overhyped claims. Yet, NASA’s testing of cryosleep tech for space missions gives us hope.
Getting Involved in Cryonics
Starting to explore cryonics means looking into organizations like Alcor or the Cryonics Institute. These groups offer membership plans that include planning for cryopreservation. This requires legal steps and involves making end-of-life decisions.
They help families understand options like neuropreservation. This ensures everyone involved gives informed consent. The cost can be from $30,000 to hundreds of thousands of dollars. Many people fund their plans with life insurance.
More than 500 people have chosen cryonics, including famous figures like Peter Thiel and Oxford’s Nick Bostrom. Even people like Larry King have changed their minds, showing the importance of careful consideration. It’s key to talk about costs, ethics, and family roles to make choices that match your values.
Today’s choices can shape tomorrow’s possibilities. It’s important to compare different providers and seek advice from experts. Whether you choose cryonics or other options, being clear about your wishes is essential. The future may bring new discoveries, but today’s decisions are what truly matter.
