“Are Marathons and Extreme Running Linked to Colon Cancer?,” New York Times, August 19, 2025
Running marathons or endurance races is often seen as a hallmark of peak fitness. However, a groundbreaking new study led by Inova oncologist Tim Cannon, MD, Sheridan Director, Molecular Tumor Board and Co-Director of the Gastrointestinal Cancer Program at Inova Schar Cancer, reveals a surprising prevalence of precancerous colon growths among extreme runners. Recently featured in The New York Times, the study opens new discussions about screening opportunities.
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