Thread: Jens Voigt "burning lungs" question
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Old 08-21-10 | 10:05 PM
  #13  
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Blackdays
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From: Pittsburgh -> Cleveland -> San Francisco
Originally Posted by Specialized2k10
so the blood that Jens is feeling is coming from irritated lungs or what? anyone know?
No.

At anaerobic threshold, blood can mix into your mucus.
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