[pct-l] adapting to heat

[hiker at godlikebuthumble.com (Hiker)]

At 05:58 PM 12/28/04, Karen Borski wrote:
>The best advice I can give you is to GO SLOW!

My best advice is "don't just drink water."  Use an electrolyte replacement 
drink, or eat lots of salt foods.

Do a search for "Hyponatremia" That is what happens when you have water and 
not enough salt. It can be fatal.
http://www.google.com/search?q=hyponatremia

Also, FWIW, trained athletes were shown to be already "heat acclimated" 
even when they didn't train in heat, so the best way to train for heat is 
to simply train. Running comes to mind.

Reference:
"Acclimatization to Heat in Humans", John E. Greenleaf and Hanna 
Kaciuba-Usciko, NASA Ames Research Center, Moffet Field, 1989.

"Results from an earlier study, where highly trained men failed to show the 
characteristic cardiovascular and thermoregulatory responses during 
exercise-heat acclimation (Greenleaf, 1964), suggested that these subjects 
were essentially acclimated to heat.....

"Thus, the advantage trained subjects have over untrained subjects when 
exposed to exercise/heat stress is the lower strain when both are subjected 
to the same absolute exercise load."