Marathons and Extreme Running: Can It Increase Your Risk of Colon Cancer?

Ultramarathoners and colon cancer don’t usually go in the same sentence. A recent study published by The New York Times involved 100 marathon and ultramarathon runners ages 35 to 50 who underwent colonoscopies. The study found that close to half of the participants had polyps, and 15 percent had advanced adenomas, or pre-cancerous tumors. Experts advise that you take these results with a grain of salt.

Marianna Zeichen, MD, associate medical director of Jackson Medical Group’s colorectal and minimally invasive surgery specialist practice, emphasizes the importance of evaluating the study’s pitfalls. “The sample size of 100 participants is limited, and the findings demonstrate an association rather than a causal relationship” said Dr. Zeichen. Despite the results of the study, the cause of the potential link is still unknown. The correlation could be due to several factors, such as common lifestyle habits among long-distance runners or family medical histories, which weren’t fully explored.

Nonetheless, the study emphasizes the importance of regular health checks and preventative care. Limiting alcohol, avoiding tobacco, and following a healthy diet are all ways to lower the risk of colon and colorectal cancers.

For more information on colon cancer and preventative measures you can take, check out Early Screening Helps Detect Colon Cancer in Young Adults. Take Steps Now to Lower Your Risk.