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Hibernation Technology
Hibernation is actually a state of deep sleep that animals such as bears use to save their energy and survive a season without eating much. It is characterized by low temperature, slow breathing, and heart rate. Basically, it is a state of reduced metabolic activity. Many years ago, space scientists proposed the idea of using hibernation for space exploration. However, the scientists, till this date, have not been able to create the means of scientific hibernation. Obviously, even if it isn’t the stuff of fantasy, it is not easy to extend the principle of animal hibernation to humans. NASA is conducting research on extended sleep, though. Let’s look at how it is going to work.
The theory of Hibernation for Interplanetary Voyage
Artificial hibernation would be obtained through Cryosleep. In the process of Cryosleep, an astronaut would be put into a state of suspended animation with the help of a drug, chamber, or something else very cold. Therapeutic hypothermia is a process that doctors have used to save hundreds of lives that would have been otherwise lost. In medical science, there are many dire treatments that incorporate the use of cold temperatures. So, the doctors, in order to treat the patients, cool them down with the ice packs, chilled water pads, or make them inhale a controlled coolant, known as Rhinochill. The chemical reactions taking place inside the body become slow and that is how therapeutic hypothermia works. Diseases such as traumatic brain or spinal cord injury in people find their treatment with therapeutic hypothermia.
Therapeutic hypothermia and Torpor
Therapeutic hypothermia runs adjacent to ‘torpor’ in the field of space travel. The creation of a torpor (state of the unconscious) stasis habitat would cool down the astronaut body’s core temperature in a few hours. The astronaut’s body temperature would lower to 89.6 Fahrenheit. This would lower the metabolic rate by 50-70 percent. While he/she would be in the unconscious state, various sensors would be hooked up to him/her to monitor his/her condition.
During torpor, the hibernated person would still receive nutrition and hydration through Percutaneous Endoscopic Gastrostomy (means of feeding through a tube). A catheter would help to drain urine. However, the maximum time a person would be kept in hibernation would only be two weeks. The participant would be allowed to resuscitate for a few days, and then go into hibernation for another cycle. There would not be one astronaut but at least six of them coexisting in a torpor state inside the chamber. They would take turns to remain awake for two-three days, ensuring the needs of the other members and the spaceship.
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Martian Cowboy Kevin MacLeod (incompetech.com)
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