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Sean describes growing up as an athlete who disliked running until he developed Guillain-Barré syndrome at 13, rapidly progressing from numbness to full paralysis, ICU ventilation, and a 94-day hospital stay, followed by relearning movement and returning to football within months with a full recovery.

At 22, while teaching English in Korea, he joined an international run club and impulsively ran his first marathon with minimal training, which inspired him to learn and improve, leading to races like Miami, LA, Chicago, and Tokyo.

Drawn to trails and the outdoors, he entered ultrarunning through fundraising with First Descents and ran the Leadville 100, calling it life-changing, supported by his parents and pacers.

He discusses over-preparation, fueling with real foods, injury and cross-training, preferring trail culture, and his mantra “take the stairs,” emphasizing movement as a privilege.


Sean Casey - https://www.facebook.com/scaseyfitness


Races Mentioned
Korea Marathon
Leadville 100
Moab 240
Tokryo Marathon

Shout Outs
First Descents
Make-A-Wish

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