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To: techdiver@opal.com
Subject: Re: CO2 buildup/vaisoconstriction
From: Jody Svendsen <svendsen@sh*.ne*>
Date: Fri, 6 May 1994 09:39:11 -0400 (EDT)

> Perhaps the people who experience strong narcosis in the beginning of the
> dive are just getting a head-rush after reverting themselves upon reaching
> the bottom.

In Miami we often make deep dives in extreme currents were you can barely 
pull yourself down to the bottom (some days you can't make it.)  We often 
get strong narcosis at the beginning of dives in the 160-230ft range.  
Because we are pulling ourselves down the anchor line, we are in the 
"skydiver" position that you mention to minimize our drag.  This would 
seem to conflict with the "head-rush" hypothesis.

    Jody Svendsen
    MiG Technologies

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