You're Healthy… So Why Is This Happening?

In this powerful episode of Running Strong Mind-Body Connection, host Karen welcomes Deneen, a Canadian ultra-runner whose journey from a non-runner to a Boston Marathon qualifier and world championship athlete is as inspiring as it is unexpected. Deneen shares her story of discovering running through military requirements, her accidental qualification for Team Canada in 100K races, and the shocking revelation of a 14mm heart defect she’d lived with since birth—yet still ran marathons and ultras without knowing it. After a life-altering surgery in 2011, she returned to running with renewed purpose, becoming a fixture at endurance events like Across the Years. Her resilience, mental toughness, and innovative pacing strategy—blending running and speed walking—serve as a masterclass in sustainable endurance. Deneen also reflects on the power of community, mentorship, and mindset, especially during grueling races like the 72-hour event where she pushed through torrential rain and exhaustion, fueled by small rewards and the presence of fellow runners like Jill Hudson. She’s now preparing for Jackpot and Route 66, proving that even after major health setbacks, the body and mind can achieve extraordinary things when aligned with purpose and joy.