Hibernation
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Kinda cool. "We think this may be a latent ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a biochemist. ... "When mice were exposed to 80 parts per million of hydrogen sulfide, their oxygen consumption dropped 50 percent and their carbon dioxide output dropped by 60 percent within the first five minutes," they wrote in their report. "If left in this environment for six hours, their metabolic rate dropped by 90 percent." Lowering metabolism reduces the need for oxygen. If this could be replicated in humans, it could help buy time for critically ill patients on organ-transplant lists and in operating rooms, emergency rooms and on battlefields, Roth said. Link[^] Seems like it might be useful for spacetravel, too. ----------------------------------------------------- Empires Of Steel[^]
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Kinda cool. "We think this may be a latent ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a biochemist. ... "When mice were exposed to 80 parts per million of hydrogen sulfide, their oxygen consumption dropped 50 percent and their carbon dioxide output dropped by 60 percent within the first five minutes," they wrote in their report. "If left in this environment for six hours, their metabolic rate dropped by 90 percent." Lowering metabolism reduces the need for oxygen. If this could be replicated in humans, it could help buy time for critically ill patients on organ-transplant lists and in operating rooms, emergency rooms and on battlefields, Roth said. Link[^] Seems like it might be useful for spacetravel, too. ----------------------------------------------------- Empires Of Steel[^]
Hydrogen sulphide? I use to work in oil and gas country and 600ppm for a full sized adult means instant death. It sounds like the Monty Python sketch, those mice weren't sleeping, they were Dead, shuffled off their mortal coils, deceased, passed the pearly gates etc etc.
"If there is a God, atheism must seem to Him as less of an insult than religion." - Edmond de Goncourt
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Hydrogen sulphide? I use to work in oil and gas country and 600ppm for a full sized adult means instant death. It sounds like the Monty Python sketch, those mice weren't sleeping, they were Dead, shuffled off their mortal coils, deceased, passed the pearly gates etc etc.
"If there is a God, atheism must seem to Him as less of an insult than religion." - Edmond de Goncourt
John Cardinal wrote: Hydrogen sulphide? I use to work in oil and gas country and 600ppm for a full sized adult means instant death. They're using 80ppm. I guess that means you should measure your hydrogen sulfide very carefully. :) ----------------------------------------------------- Empires Of Steel[^]
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Kinda cool. "We think this may be a latent ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a biochemist. ... "When mice were exposed to 80 parts per million of hydrogen sulfide, their oxygen consumption dropped 50 percent and their carbon dioxide output dropped by 60 percent within the first five minutes," they wrote in their report. "If left in this environment for six hours, their metabolic rate dropped by 90 percent." Lowering metabolism reduces the need for oxygen. If this could be replicated in humans, it could help buy time for critically ill patients on organ-transplant lists and in operating rooms, emergency rooms and on battlefields, Roth said. Link[^] Seems like it might be useful for spacetravel, too. ----------------------------------------------------- Empires Of Steel[^]
From the Article: We think this may be a latent ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a biochemist. Bears do it, amphibians do it, and people occasionally hibernate, too. Many cases have been documented of small children, and the occasional adult, reviving from near-drownings in icy water after their body temperatures had dropped and they had stopped breathing for more than an hour. I wonder if what they are seeing is a defense mechanism instead of hibernation in the traditional (cyclic) sense. For example, what if the mice were actually be having a negative reaction to the toxic contents in the air, and their natural reaction would be to reduce their oxygen need, and thus their breathing rate. The same thing could be thought of for people that end up going under in freezing waters; they just reduced their need to breathe. Consider the difference between freezing to death (while breathing normally), and falling in the water, which could cause an immediate need to reduce the need to breathe. Just a thought... I am not a biologist or biochemist. Peace! -=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Tip for new SUV drivers: Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
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From the Article: We think this may be a latent ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on and off, inducing a state of hibernation on demand," said Roth, a biochemist. Bears do it, amphibians do it, and people occasionally hibernate, too. Many cases have been documented of small children, and the occasional adult, reviving from near-drownings in icy water after their body temperatures had dropped and they had stopped breathing for more than an hour. I wonder if what they are seeing is a defense mechanism instead of hibernation in the traditional (cyclic) sense. For example, what if the mice were actually be having a negative reaction to the toxic contents in the air, and their natural reaction would be to reduce their oxygen need, and thus their breathing rate. The same thing could be thought of for people that end up going under in freezing waters; they just reduced their need to breathe. Consider the difference between freezing to death (while breathing normally), and falling in the water, which could cause an immediate need to reduce the need to breathe. Just a thought... I am not a biologist or biochemist. Peace! -=- James
If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Tip for new SUV drivers: Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
DeleteFXPFiles & CheckFavorites (Please rate this post!)Many cases have been documented of small children, and the occasional adult, reviving from near-drownings in icy water after their body temperatures had dropped and they had stopped breathing for more than an hour This is well known. I used to do mountain rescue in my 20's and was a keen kayaker. A popular phrase on white water rescue courses and within mountain rescue was 'your not dead till your warm and dead' I am not sure of the science behind this but i believe it has something to do with mamalian diving reflex or something like that. It is more common in children but is also seen in adults. I also thought it was something to do with cold shock rapidly reducing the bodies oxygen requirment but also i am not a biologist. Jon