We’ve all seen the movies by now: Alien, Interstellar, Avatar, 2001: A Space Odyssey. All of these movies involve shooting people into deep space, allowing them to travel far distances and learn about the universe. Of course, these trips are often longer than your normal trip up-state. It takes years to get up that far into space. This is no problem for sci-fi, though. Just put these astronauts into cryosleep.
Cryosleep is the process of putting a person into suspended animation, usually through a drug or a hibernation chamber that is generally very cold. While this sounds very science fiction, it is actually closer to reality than we would think. The word “cryosleep” doesn’t actually describe the process that scientists are working toward. Scientists are working on technology that will help put a human being into a state of unconsciousness similar to hibernation. This is more accurately described as torpor.
While we haven’t reached the levels of sci-fi films, scientists and doctors have found positive effects from therapeutic hypothermia, which is the process of cooling a body down to enable it to heal. The positive effects of therapeutic hypothermia have scientists believing more and more in the possibilities of torpor, or cryosleep. The idea here is that if you cool a body down, it will have more time to heal. According to Matteo Cerri, a neurophysiologist and hibernation researcher at the University of Bologna in Italy, “If you lower the temperature of the brain, the neurons can use what they have for a longer time.”
There are obviously still problems with this process, though. Scientists have been testing out methods of therapeutic hypothermia with mixed results. Ice packs, cooling saline and RhinoChill (a cooling aerosol that is inhaled) have all shown both positive and negative results when tested out. The issue is that it is hard to cool the body without the body going into hypothermia, at which point the body will begin to fight back against the cooling in order to stay alive. This also doesn’t account for the fact that scientists have only been able to cool people down for up to 72 hours. And that there are often negative side effects, like nerve damage.
This is why scientists have to move more toward torpor and less toward therapeutic hypothermia. Torpor, like animal hibernation, is the process in which the body itself works to cool down, so it won’t fight back against the cooling. The goal is to figure out a way for humans to go into a natural state of hibernation. In order to make that happen, though, scientists have to gain a better understanding of what happens to animals internally when they go into hibernation, and then figure out a way to mimic that process in a human body.
While scientists are still working on these advances, we can only imagine what it would mean for the rest of the population once we have this technology. Not only will we have a way to explore deep space, but here on earth the possibilities are endless. We can put humans into cryosleep to prevent death when transplants are needed, or if medical advancements haven’t come far enough to cure an illness. It would help humans heal from serious injuries in a more precise way by allowing the body more time to heal itself. Until then, we can keep watching our sci-fi films and hope for the best outcome.
You must be logged in to post a comment.