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> I don't want to say this isn't so but I was under the impression
> that the tiredness was the result of accumulated Nitrogen in the
> nervous system. Myself and others have found that if you use O2 
> or a high Oxygen mix for deco to wash Nitrogen more competely
> from your system you feel good after a dive, not tired. Can anyone
> explain better the relationship to feeling tired after a dive and
> the physiology of high pressure N2 and the rigidity of red cells
> or anything else?

Yeah, but is it really the washing out of N2 that mitigates tiredness, 
or could it be the exposure to high PO2 that does it?  As far as I know, 
nobody has done the right tests to tease it apart, and I don't have any 
anecdote to help tease it apart either - anybody else?  I guess the first 
thing to do would be to nail down exaxtly what causes the tiredness in 
the first place.  I've heared several explanations, none of which seem 
any more credible than any other...

Aloha,
Rich

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