This podcast interviews Dr. Kerry Courneya, an expert in exercise oncology, about the significant role of exercise in cancer prevention and treatment. The discussion covers cancer prevention strategies, emphasizing the importance of exercise alongside smoking cessation and weight management; it highlights how exercise, particularly vigorous activity, reduces cancer risk even in high-risk individuals. The interview then shifts to exercise's role in cancer treatment, detailing its impact on fatigue, sleep, anxiety, and treatment tolerance, and explaining mechanisms like improved blood flow to tumors. Finally, the conversation touches upon emerging research on exercise as a potential monotherapy for low-grade cancers and the use of liquid biopsies to monitor cancer recurrence. The podcast concludes by emphasizing the importance of exercise throughout the entire cancer journey, from prevention to survivorship.