The Haywire Heart (Kobo eBook)

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· Lennard Zinn is a household name among serious cyclists.

· Dr. John Mandrola is a cardiac electrophysiologist and an active cyclist with an athlete’s heart condition.

· Dozens of professional cyclists and triathletes have retired prematurely in recent years because of athlete’s heart. Media interest in heart problems among athletes is high.

· Mainstream media have covered sudden deaths in endurance sports events.

· Follows on the success of Fast After 50, a guide for older endurance athletes.