Subject:
RE: Re-dizzy
Date:
Mon, 25 Aug 1997 00:59:20 +0000 (GMT)
From:
"Paul O. Jacobs, M.D. 31 5884|(503)571-5884"
<JACOBSPA@kpnwoa.mts.kpnw.org>
To:
Peter Ross <peteross@cloudhandsmusic.com>
*Paul sent this note to me, but I think he meant for everyone to see it,
so here it is. Peter*
Hi All:
As a physician I can lend some physiological underpinnings to
your
question of dizziness. This is due to changes in the blood chemistry,
pH
and CO2 content that results from blowing out too much too fast,
breathing
in and repeating the process repetitively such that the carbon
dioxide
level in the lungs and secondarily in the blood falls. These changes
then
result in some alteration of vascular tone and blood flow within the
brain
and voila!...dizzy! Peter Ross hit it on the nose when he suggested
narrowing of the stream of air. This would reduce the rate of
exhalation
of C02 and prevent these physiological changes from occurring.
Paul Jacobs, Portland ORv
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