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Topic	Contrary to popular belief, humans do not breathe in air.
adjl 11/02/17 8:34:40 AM #4:	We do actively suck in air, though. Sucking in air is always a matter of creating a vacuum, which we actively do. Negative pressure breathing is distinct from positive pressure breathing, but it's no less of an active process. --- This is my signature. It exists to keep people from skipping the last line of my posts. <cite>adjl posted [p:889611132] in Contrary t... [t:75946203]...</cite> <quote>We do actively suck in air, though. Sucking in air is always a matter of creating a vacuum, which we actively do. Negative pressure breathing is distinct from positive pressure breathing, but it's no less of an active process. --- This is my signature. It exists to keep people from skipping the last line of my posts.</quote> ... Copied to Clipboard!
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