Duane Strosaker wrote: >On the other hand, what Freya had to say that fascinated me was that she only drank 2.5 liters of water per day. I thought that was very little water. I usually drink 3 liters on a 20 NM crossing and need a another 2 liters for the rest of the day. So I'm wondering if I'm drinking too much. > > > Maybe this article might explain in some part why.... http://scuba-doc.com/mendivers.html HEAT: Men's difficulties don't end with cold and calories. Large men are more likely to overheat than women, the reverse of common contention. Men generate much more heat than women but dissipate it less efficiently in hot weather. Their usually smaller surface area to mass ratio means they can't radiate away as much heat as women. More troublesome, men's higher skin temperature than women makes a smaller shell to environment gradient in hot weather. The low gradient impedes heat loss. The greatest risk is to the large, round, bull-necked men you have seen, red faced and streaming sweat in moderate heat, and have probably even seen uncomfortably hot in normal room temperatures. DEHYDRATION: Noted thermal researcher C.H. Wyndham described men as "wasteful, prolific sweaters" in a paper in the Journal of Applied Physiology. You don't need a research scientist to tell you that. It's myth that men have more sweat glands than women. Men begin sweating at a lower temperature than women and, obvious to all, sweat more. However, men sweat beyond that which can be evaporated so the extra sweating confers no cooling advantage over women. Men lose more vital body fluids by volume and percent than women. Combine that with men's higher water requirement due to their size and higher metabolic budget, and they incur higher risk of dehydration. ELECTROLYTE IMBALANCE: Because of their high sweating rate and volume, men also risk the possibility of losing more electrolytes than women. Over long periods of time they theoretically might be at greater risk of electrolyte imbalance. *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Mon Feb 22 2010 - 19:16:04 PST
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