In article , Commander Kinsey
wrote:


On 18/01/2019 01:45, Commander Kinsey wrote:
Are you serious? 10 seconds? Water is never cold enough to get out
that quickly. I can swim in zero degrees C water for a couple of
hours. Humans are warm blooded. Shivering doesn't mean you're going to
die, it means you've lost 1 or 2C (out of 17C required to die) and your
body is shivering to prevent further heat loss, not to mention brown fat
cells generating heat, and of course limiting heat loss by adjusting
blood flow to the skin.

....

In winter weather people die in around 30
minutes when submerged in cold (10ºC) water.

The official bull**** is actually 15 minutes at 0C, 30 minutes at 5C, and a
whole hour at 10C.

so not the 'couple of hours' you originally claimed.