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To: techdiver@opal.com
Subject: Re: Breathing Reflex
From: J Shepherd <jms@fe*.ed*.ac*.uk*>
Date: Tue, 13 Dec 94 12:18:22 GMT
	The absolute production of CO2 is metabolism related - since
this is not depth related, the amount of CO2 remains the smae regards of
depth (since you are breathing out, the ppCO2 in you lungs at 40m, 80m
or 0m is the same). This backs up to your brain, where the CO2
equilibrates into the wet bits of your brain and alters the pH. The is
picked up.... somewhere, and increases drive and the breathing reflex
(i.e. I gotta do something, and the something is breathe - if you can't
breathe you still gotta do something so you panic).

	You don't *need* to in terms of O2 intake, but in terms of
metabolic by product, you do want to...

	Jason. Heck we're actually the same person, we just travel a
lot.

	PS Panic is just a very useful displacement activity... :-(

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