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Explain this for hyperventilating people..

Breath in and out into a paper bag where your first breath is 21% oxygen and each and every breath reduces the oxygen intake by 2% and this decreases by each breath...is this not slowing the brain by lack of oxygen?

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MartinTheFirst · 26-30, M

so in other words.. I will suffocate after 11 breaths?

MikefromEP · 51-55, M

@MartinTheFirst: No.. your hands will drop the bag when you lose consciousness and reset your breathing