Distance Running Linked to Higher Risk of Colon Cancer in Young Adults, New Study Reveals
A beloved physical activity endorsed by millions for its health benefits—long-distance running—may be unexpectedly associated with a higher risk of developing precancerous colon growths among young adults, according to a new study presented at the prestigious American Society of Clinical Oncology (ASCO) 2025 conference in Chicago. The study, conducted by researchers based in Washington, DC, challenges the prevailing wisdom that vigorous aerobic exercise is universally protective against all forms of cancer, raising pressing questions for health-minded Thais—especially the country’s growing cohort of marathon and ultramarathon enthusiasts.