A study published in the International Journal of Cancer found that just 10 minutes of intense exercise may trigger measurable changes in the body that help reduce the risk of developing colon cancer and possibly other forms of cancer. The research gathered 30 adults between ages 50 and 78, all classified as overweight or obese, who completed a brief but intense cycling session lasting around 10 minutes.
After the workout, blood samples revealed that 13 different proteins related to cancer prevention and cell health increased. One standout was interleukin-6, a molecule that plays a key role in repairing damaged DNA. Others were involved in reducing inflammation, boosting blood vessel function, and improving metabolism. Researchers then exposed colon cancer cells in the lab to the blood from participants post-exercise. The results showed that more than 1,300 genes changed their activity, particularly those related to energy production, cancer cell growth, and DNA repair.
Mechanisms of protection
Dr. Anton Bilchik, surgical oncologist and director at Providence Saint John’s Cancer Institute, explained that “DNA repair is an important way to slow the progression of colon cancer” and that “exercise may have a protective effect, possibly by stimulating the immune system to fight cancer cells or potentially delay the progression.” Chronic inflammation can raise cancer risk by disrupting healthy cells over time. Regular physical activity is one of the most reliable ways to reduce inflammatory response. “Anything that can be done to reduce inflammation—such as exercise—is likely to reduce the chance of getting cancer,” Bilchik stated.
Dr. Eduardo Vilar Sanchez, a cancer prevention specialist at The University of Texas MD Anderson Cancer Center, noted that while the study specifically examined colon cancer, “the biological benefits seen in this study, like inflammation reduction and DNA repair, are core mechanisms that are relevant across many types of cancer.” The National Foundation for Cancer Research has found that doing strength training twice a week may cut cancer risk by 31 percent. While this study centered on a short burst of cardio, previous research suggests strength training may be equally valuable or more so for lowering cancer risk.
This article is an AI-assisted summary. All facts and figures are drawn from the original report: https://www.optimistdaily.com/2026/02/only-have-10-minutes-this-quick-burst-of-exercise-may-cut-your-cancer-risk/