NYCkayaker weird and problematic article concerning cold weather activities in times

[mike]

http://www.nytimes.com/2008/01/17/health/nutrition/17BEST.html?ei=5087&em=&e
n=17c40be634b60f38&ex=1200805200&pagewanted=all
http://tinyurl.com/38559l
Dr. Noakes said that during Mr. Pugh's North Pole swim, hypothermia was a
real concern. Hypothermia can happen suddenly in icy water, with the
swimmer's core temperature plummeting, and the fear was that Mr. Pugh might
pass out and sink before he could be rescued. Mr. Pugh, an experienced
cold-water swimmer, was wearing a device to monitor his temperature, but
nonetheless, Dr. Noakes was "petrified," he said.

The biggest risk of hypothermia comes with a combination of wet and cold.
That is because water transfers heat from the body 70 times more efficiently
than air.

Hypothermia begins to set in when the body's core temperature falls to 95
degrees. That elicits shivering and a rise in blood pressure. But if your
temperature drops to 85, you lose consciousness, and if it goes much lower,
you can die. The trick to avoiding hypothermia is to keep moving, Dr. Noakes
said. "As long as you keep moving you are not going to die because you
generate so much heat."