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Hypocapnic Blackout...

Thread Status: Hello , There was no answer in this thread for more than 60 days.
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New Member
Nov 25, 2003
1. Why is high CO2 the limiting factor to Dynamics (Alanc post)

Co2 is what gives your body the urge to breathe and at my current level of ability (1:30-1:40) i think high levels of Co2 is limiting me before i get low on oxygen. Obviously the higher a Co2 tolerance you can build and/or the more you can purge you would eventually meet you O2 limit.

Dave S

Dave S

New Member
Jun 11, 2003
Originally posted by efattah
- Blackout. All blackouts are caused by brain energy failure, which is normally preceded by lack of oxygen. The lack of oxygen can be caused by:


2. Too low CO2 = too much vasoconstriction = too little blood flow to the brain


- Methods of avoiding hypocapnic blackout
[too many to list, here are some]
1. Avoid vasodilating foods
That doesn't seem to make sense to me... Is it a typo? (Vasoconstricting instead of vasodilating?)

Either way, what sort of food are vasodilating? (Or vasoconstricting?)

Thanks. :)
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