Cool brains underwater

[wet]

Among those to whom google is a dangerous tool

spamming again?

 

[ReefTroll]

hardly, but these cut asnd paste threads and the absence of logic in your defence of them can be considered so.

 

[wet]

hardly, but these cut asnd paste threads and the absence of logic in your defence of them can be considered so.

yup, spamming again. Time to find the ignore button.

 

[sross]

I am in serious doubt about the whole thing.

IMHO diving bare skin in such cold water results in such massive heat loss that cannot be "balanced out" by heat production.

Therefore, core temperature will continue dropping, eventually leading to the loss of consciousness. I have already descibed the feeling of degradation of sences (hearing, colour vision, motorics and sence of balance) that I experienced diving in such sub-cooled state.

This is not a "recreational" diving at all. This is more of a hard core experimental diving. I was blessed with waterfront cabin for a week, where I could interrupt my diving and with the help of a buddy to get back to the cabin and stay in a warm shower for a while. Even then recovery is slow and takes a while to get back to normal. Long term effects of such sub-cooling is not known, cannot be good anyway. We are talking sickening blow to our heat regulation process.

I wonder if you let the cooling reach the point where the temperature of the hypothalamus drops, it screws up thermoregulation.

Then it's harder to get your temperature back under control, and in particular warm the hypothalamus, which is deep within the brain, back up, so that thermoregulation works effectively again.

Anyone know if there are scientific papers out on this topic?

 

[Andrew the fish]

I wonder if you let the cooling reach the point where the temperature of the hypothalamus drops, it screws up thermoregulation.

I know how thermoregulation can be screwed up. I had racing sailboat sinking under me once, long time ago, and since then I had elevated body temperature for almost a year after. It was like 37.1 all the time. My doctor said it was probably normal reaction to deep hypothermia event. I doubt I am getting to such deep hypotermia stages this time, like I said it is somewhat scary, sort of like a moonwalk, I know that I only have so much time and that all the heat I have is gradually vanishes as I keep staying in the water.

As water temperatures continue dropping this time of the year, I tried diving with shortie just so my head is cooled :head I know it is silly to think this will work, but anyways, I tried it. May get better with the time but for now I say, too much pain for so little gain. Freediving must be fun all the time :friday, I refuse accepting anything else :crutch

 

[agbiv]

I like spam. Fried spam, spam sandwiches, spam with onions, spam-n-eggs, spam and beans, spam on crackers, spam and cheese. I like spam. I especially like spam inspired from down under.

Please refer to Monty Python for the definitive and most eloquent erudiation on spam. :t

 

[sross]

For the record, there's another efect of extreme cold exposure.

Lynne Cox, the famous long distance swimmer, swam 1.4 km for 22 min at 0.5ºC in the Antarctic, wearing only a standard-issue bathing suit and rubber swim cap. The next day she swam 1.6 km for 25 minutes at 0.0ºC.

It was discovered later that she had sustained damage to the nerve endings in her skin, in particular the ones that sense pain. It took her quite some time to recover function, but it did come back.

The story is told in her book "Swimming to Antarctica", 2004, ISBN 0-15-603130-2

 

[wet]

Her comments on the transparent ice shards hitting her face chilled me thoroughly.

I don't know how the seals/penguins avoid damage to their skin and eyes diving in that chunky icy stew.

For the record, there's another efect of extreme cold exposure.

Lynne Cox, the famous long distance swimmer, swam 1.4 km for 22 min at 0.5ºC in the Antarctic, wearing only a standard-issue bathing suit and rubber swim cap. The next day she swam 1.6 km for 25 minutes at 0.0ºC.

It was discovered later that she had sustained damage to the nerve endings in her skin, in particular the ones that sense pain. It took her quite some time to recover function, but it did come back.

The story is told in her book "Swimming to Antarctica", 2004, ISBN 0-15-603130-2

 

[slingshaft]

I'm with Chef Al! I actually like Spam cooked in Maple Syrup!

 

[wet]

I like spam. Fried spam, spam sandwiches, spam with onions, spam-n-eggs, spam and beans, spam on crackers, spam and cheese. I like spam. I especially like spam inspired from down under.

Please refer to Monty Python for the definitive and most eloquent erudiation on spam. :t

Spam (the original Hormel Co. product) is from my home state of Minnesota.
Pseudo-spam can be found anywhere... :ko

 

[Poida]

Mr Wet, where does the word or name spam come from? Is it mixture of jam and sperm or Sperm Jam?

 

[wet]

Mr Wet, where does the word or name spam come from? /QUOTE]

Ask Mr. Hormel!

 

[Poida]

OK, if I ever come across Mr Hormel..........................?

 

[agbiv]

Go to the source--www.spam.com

:king

 

[ReefTroll]

Oh for gods sake Poida, just come across him already!


---
I am here: [ame="http://maps.google.com/maps?ll=-27.465795,153.028501"]Google Maps[/ame]

 

[Poida]

Reef Troll
That's not you hoonin' those Cats up and down the river?

 

[Poida]

Sorry I got off topic.

Can't get on topic on account of no brains.

 

[ReefTroll]

No I was on a bus, dreaming about ham in a can


---
I am here: [ame="http://maps.google.com/maps?ll=-27.530530,153.060143"]Google Maps[/ame]

 

[wet]

Gathering mollusks under ice: Race against the tide, risking death under huge blocks of ice - Human Planet: Arctic - BBC One - YouTube

(better than spam any day!)