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- From: gd@gehenna.sw.stratus.com (Greg Dawe)
- Newsgroups: rec.scuba
- Subject: Re: dangerous misconception (was Re: Human bodies explode...)
- Message-ID: <1e8dgiINNafa@transfer.stratus.com>
- Date: 16 Nov 92 15:08:02 GMT
- References: <1992Nov16.074547.5322@nntp.uoregon.edu>
- Organization: Stratus Computer, Software Engineering
- Lines: 40
- NNTP-Posting-Host: gehenna.sw.stratus.com
-
- In article <1992Nov16.074547.5322@nntp.uoregon.edu> davidw@cie.uoregon.edu (David Weingarten) writes:
- >Anybody diving to 200' and deeper is going to be SERIOUSLY narc'ed.
- >Whether they feel panicky, euphoric or start hallucinating varies
- >from person to person.
-
- You're right about the individual susceptability. In fact, the susceptability
- varies from person to person, from day to day, and from dive to dive. Other
- factors include the depth (which you mentioned), and the activity level - the
- more you exert, the more narc'd you get.
-
- On a more technical note, it's not completely accurate to state that "anybody
- diving to 200' and deeper is going to be SERIOUSLY narc'd". There are some
- divers who are able to function well at 200 FSW, and a rare few, who can
- function well even deeper. These divers have been diving deep on air for
- years, and have developed some tolerance for the symptoms of narcosis. They
- also understand their body's limitations while "under the influence" and don't
- stray too far from the anchor line, nor do they exert themselves.
-
- This tolerance, or adaptation is finite. It has a "bottom" (as opposed to
- a ceiling), and can be lost if the diver doesn't continue to dive deep.
- In areas of seasonal diving, such as New England and Long Island, deep divers
- spend the initial part of the season diving progressively deeper to regain
- their deep adaptation/tolerance.
-
- I have purposely left out mention of CNS Oxygen Toxicity - a serious
- consideration - in order keep this posting short, and to the point.
-
- Please note, I am NOT advocating any particular form or practice of diving -
- especially deep diving. Everyone should always dive within their limits of
- training, comfort, and experience. This posting is intended for discussion
- purposes only. Don't take my word on anything - read and educate yourself!
-
- More information about this can be found in Brett Gilliam's "Deep Diving"
- and several articles appearing in the AquaCorps DEEP issue. Also, somebody
- belonging to UHMS published a paper on progressive adaptation to narcosis.
- Any net.divers know who, or have a copy?
- --
- Greg Dawe | Disclaimer: I don't speak for my employer,
- Voice : (508)-490-6666 | nor they for me...
- e-mail: Greg_Dawe@vos.stratus.com|
-