Posted by Miguel (209.42.249.81) on June 24, 2000 at 00:09:52:
In Reply to: Speculations posted by Miguel on June 23, 2000 at 01:24:31:
Well, I shouldn't type when I am sleepy :)
Correction:
Dipping may compound this effect by simple CO2
accumulation-derived vasodilation. That is when
dipping under...so there might be a synergistic
between the two actvities.
Translation:
When one dips under water, one holds breath.
Holding breath increases blood's CO2 content.
Body responds with vasodilation to take more blood/O2
throughout the body.
Cold water may initially result in vasodilation
to heat the body.
Then vasoconstriction to preserve body heat, and
maintain core temp.
Summary:
With increased blood flow, decreased circulation
to body's appendages, and increased CO2 levels
the vasculature is taking a workout. This perhaps
restores homeostasis to the afflicted blood vessel
in the brain. :)
So...if it works, great!!! gotta try it myself...
It would give me a change of routine from the
bizillion push-ups and sit-ups, and the ensuing
endorphin high...now that always works...
Miguel