[Split From] Discussion about CO2/O2 and breathing/respiration

Quote:

Originally Posted by Planigale (Post 13214025) ... The childhood thing of hyperventilating, then holding your breath and passing out is due to low oxygen levels not raised carbon dioxide levels. Oxygen levels drop far quicker than carbon dioxide levels rise due to buffering of carbon dioxide. ....

No it isn't.

You blow off too much CO2 and get slightly alkalotic . That's why we have people who are hyperventilating breathe into a bag.

Quote:

The point of breathing into a bag is to “re-breathe” your exhaled carbon dioxide (CO2) in the hopes of bringing your body back to a normal pH level.

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