The Haywire Heart

Dr. John Mandrola and Lennard Zinn and Chris Case

The Haywire Heart by Lennard Zinn, Dr. John Mandrola, and Chris Case

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The Haywire Heart is the first book to examine heart arrhythmia in athletes.

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3 Ways FAST AFTER 50 Can Help You Defy Aging

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In this excerpt from his new book Fast After 50, coach Joe Friel shows three ways athletes can defy aging.

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