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 I've heard of folks training for DEEP dives by using it to acclimate 
themselves.  You know, sort of simulating narcosis effects at a deeper 
depth, without actually having to find a hole that deep to train in.

     ----------------------------------------------------------------------

     I have heard that a diver can acclimatize himself to the effects of 
     nitrogen narcosis by making progressively deeper dives over a period 
     of time.  Hal Watts discussed this phenomenon at TEK, and Brett 
     Gilliam talks about it in the new edition of "Deep Diving".

     My question is this: Does nitrous oxide, commonly used as an 
     anesthetic, work using the same biological mechanism as nitrogen 
     narcosis? The effects of narcosis and nitrous oxide are certainty 
     similar in feeling.

     Now, if the two work on the same mechanism, would it be possible to 
     breath a moderate dosage of nitrous oxide, for say, 30 minutes a day 
     for a week, while performing a task? Something like assembling a 
     puzzle, playing tic-tac-toe or simple math problems?  Even typing on a 
     keyboard would be a good task.

     After a period of time, would you get better at dexterity and 
     straight-thinking?  And if so, would it allow you to better cope with 
     the effects of nitrogen narcosis?

     Andy Cohen

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