Re: [at-l] Water Water Water

["W F Thorneloe, MD" <thornel@attglobal.net>]

I think the numbers are incorrect. Remember there are other ways of losing 
water, including exhalation of a 100% humidity breath. Total water loss is 
hard to quantify as it varies with heat, humidity, heat acclimation, 
activity, and other individual factors.  Also, one can absorb much more 
than 1 liter of water per hour. That is how I see patients with low sodium 
(dangerous hyponatremia) from water binges or SIADH (syndrome of 
inappropriate anti-diuretic hormone).

But the conclusion is correct. The time to deal with dehydration is before 
the activity - via prevention. It is a great idea to hit the water before 
the activity, rather than trying to play catch up. Flavoring and other 
strategies can help encourage more water use. This is true whether you are 
newbie, elite, military, spectator, or Indian Chief.

OrangeBug
Atlanta, GA

At 03:40 PM 5/4/2000, Tim Wilson wrote:
>Therefore, during extended periods of heavy exertion, you can become
>dehydrated even though you are drinking like crazy.  Long rest periods
>are required in order to rehydrate.

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