Runner Things #1471
Posted on 12 Jun, 2013
What fuel crisis?
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Kara Goucher's Running for Women
From First Steps to Marathonsby Kara Goucher
The need to breathe so much is due to carbon dioxide build-up more than the need for oxygen. If there was a different way to get rid of carbon dioxide from the blood, we would only need to breathe at a rate of about once per minute.
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