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US man has brain damage, mother says, after allegedly being pushed into lake
(www.theguardian.com)
this post was submitted on 06 May 2024
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They last even longer if the water is cold. In the winter people have been brought back after spending several hours dead under the ice after falling through and drowning. I think the record for someone who made a full recovery is 17 hours.
There's a saying in EMS, "They're not dead until they're warm and dead."
That's amazing! 17 hours! There must be serious brain damage though, like in this poor man's case.
Seriously. If I'm unconscious for that long, please do not bring me back.
Nope, it can be minimal to no brain damage at all, which is what makes these so wild to see. The cold keeps their brain and other cells from needing much oxygen, and thus keeps them from dying.
That's amazing. The body is a really incredible thing. Maybe one day we'll understand how that works and perfect it for putting people in long-term suspended animation.
Well, we don't have anything for long-term suspension, but we do use it sometimes in cases of cardiac arrest.
It's called the 'mammalian diving reflex'
It's triggered when ice cold water hits the back of the neck, and blood flow is redirected to just between the brain and heart, keeping the brain alive.
So it's not the temperature of the water, per se., other than triggering the reflex.