This week on AtoZrunning:

We discuss exactly why the record books have been completely rewritten in recent years. We also answer a listener’s question about the life of super shoes. In the world of running, the Diamond League ended the early season with a Scandinavian double and a multitude of records! As for high school, a mile record was broken twice at the same meet. And in the headlines, 36 marathons in 36 days would be tough enough without a fatal lung condition. 

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