How 10 minutes of exercise may help protect against bowel cancer

A UK study found that a single 10-minute bout of intense exercise (cycling in the study) produced rapid blood changes linked to reduced inflammation and improved blood vessel function, and those changes appeared to activate genes for DNA repair while suppressing genes tied to cancer cell growth.

New UK research reports that brief, intense exercise can trigger rapid changes in the bloodstream that relate to processes involved in bowel cancer. The study tested a 10-minute bout of intense cycling and examined molecules that changed after the session. Those changes were reported to link to reduced inflammation and improved blood vessel function. Researchers said the blood changes appeared to activate genes involved in DNA repair and energy production while suppressing genes associated with cancer cell growth. Key findings: - A 10-minute session of intense cycling produced rapid changes in blood molecules linked to lower inflammation and better blood vessel function. - When tested, those changes appeared to activate genes for DNA repair and energy use and to suppress genes tied to cancer cell growth. - The study’s lead author, Dr Sam Orange of Newcastle University, said a single short workout can send powerful signals that may make the body less favourable for cancer cells. - Previous research was cited showing that regular physical activity is associated with about a 20% lower risk of colon cancer. - The type of brief, intense sessions studied is often called "exercise snacking," meaning short bursts that raise heart rate and can fit into busy schedules. Summary: The study offers a possible biological explanation for how short, intense exercise could contribute to lower bowel cancer risk by changing blood chemistry and gene activity. The report does not specify broader public-health recommendations or next research steps. Undetermined at this time.