If I could give this post more than one up vote, I would.
If I could give this post more than one up vote, I would.
I'd like to see brain studies and MRIs of free divers then, who continually go 5+ minutes without oxygen inhalation.
I'd like to see brain studies and MRIs of free divers then, who continually go 5+ minutes without oxygen inhalation.
This is the best I could find..
https://www.sciencedaily.com/releases/2015/12/151201093507.htm
This is the best I could find..
https://www.sciencedaily.com/releases/2015/12/151201093507.htm
Shit, thanks. You didn't even need to bother.
> When submerged underwater without access to oxygen, the body responds with what is called "diving reflex," which includes a decreased heart rate, a constriction of blood vessels in the extremities, and a shift in blood flow from the extremities to the brain. These changes also occur -- to a lesser degree -- during prolonged breath holding without being submerged. As oxygenated blood is diverted from the rest of the body to the brain, blood pressure increases.
>"As a recreational activity, free diving could be harmful for someone who has heart or other medical conditions and is not well trained for the activity," said one of the study's leaders, Lars Eichhorn, M.D., from the Department of Anesthesiology and Intensive Care Medicine at the University Hospital of Bonn.
That's some interesting info. I wonder if there's been an increase in deaths due to cardiovascular issues (stroke/heart attack) since February to now that were labeled as covid as the cause of death. The person had a compromised system already and the bodies reaponse to the prolonged increase of CO2 was the final straw.
Shit, thanks. You didn't even need to bother.
>> When submerged underwater without access to oxygen, the body responds with what is called "diving reflex," which includes a decreased heart rate, a constriction of blood vessels in the extremities, and a shift in blood flow from the extremities to the brain. These changes also occur -- to a lesser degree -- during prolonged breath holding without being submerged. As oxygenated blood is diverted from the rest of the body to the brain, blood pressure increases.
>>"As a recreational activity, free diving could be harmful for someone who has heart or other medical conditions and is not well trained for the activity," said one of the study's leaders, Lars Eichhorn, M.D., from the Department of Anesthesiology and Intensive Care Medicine at the University Hospital of Bonn.
That's some interesting info. I wonder if there's been an increase in deaths due to cardiovascular issues (stroke/heart attack) since February to now that were labeled as covid as the cause of death. The person had a compromised system already and the bodies reaponse to the prolonged increase of CO2 was the final straw.
Actually what's really interesting is that you only feel like you need to breathe from a build up of carbon dioxide NOT a lack of oxygen. So, as long as you breathe fast enough to saturate your body with oxygen, if you were to deep dive and not feel like you had to breathe you should be fine.
It's the same reason sudden deaths happen in things like septic tanks. You climb in and keep breathing, so your body thinks it's fine, but you suffocate anyway.
Actually what's really interesting is that you only feel like you need to breathe from a build up of carbon dioxide NOT a lack of oxygen. So, as long as you breathe fast enough to saturate your body with oxygen, if you were to deep dive and not feel like you had to breathe you should be fine.
It's the same reason sudden deaths happen in things like septic tanks. You climb in and keep breathing, so your body thinks it's fine, but you suffocate anyway.
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