A recent randomized controlled trial involving nearly 900 patients across 55 cancer centers in six countries provides compelling evidence that exercise can improve colon cancer survival. The study found that participants who engaged in a structured exercise program exhibited a 37% lower risk of mortality and a 28% reduced risk of cancer recurrence or new disease, compared to the control group. “We approve drugs that have the same and in some cases less of a benefit than this,” said Dr. Julie Gralow of the American Society of Clinical Oncology (ASCO). While previous observational studies had hinted at such benefits, this rigorous clinical trial establishes a clear causal relationship between exercise and enhanced cancer outcomes, according to experts. The exercise program required participants to gradually increase their weekly physical activity to the equivalent of about 45 minutes of brisk walking four times per week. (NYT)