Runner Things #1661
Posted on 29 Jul, 2013
Too fit to quit.
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The Running Trivia Book
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What I Learned About Life, Women (and Running) in My First 100 Marathonsby Dane Rauschenberg
The New Rules of Marathon and Half-Marathon Nutrition
A Cutting-Edge Plan to Fuel Your Body Beyond the Wallby Matt Fitzgerald
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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