This woman revealed the shocking truth that she unknowingly ran a marathon while in heart failure.

Madi DiBattista, 25, from Cincinnati, Ohio, US, appeared outwardly healthy and had completed a half marathon just six weeks before she was diagnosed with heart failure.

Doctors were stunned by how she had maintained such intense physical activity for more than a decade while unknowingly living with a serious heart condition.

She said: “I was 24 years old and I went into heart failure. 

“One in 5,000 people get this diagnosis, and there was no way that I could’ve lived another 10 years on this heart.” 

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