Chris Duffy, a professional cyclist, was diagnosed with heart failure at just 23. At age 29, he underwent a heart transplant.

Chris Duffy, a professional cyclist, was diagnosed with heart failure at just 23. At age 29, he underwent a heart transplant. In this video, Chris talks about the Mass General Cardiovascular Performance Program and how Dr. Aaron Baggish and his team have been able to keep him on his bike.

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