Are Marathons and Extreme Running Linked to Colon Cancer? – The New York Times

August 19, 2025

The rate of advanced adenomas was much higher than that seen among adults in their late 40s in the general population, which ranges from 4.5 percent to 6 percent, according to recent studies The figure among extreme runners was even higher than the 12 percent rate among Alaska Natives, who are unusually prone to colon cancer. The New York Times (PAYWALL)