Summary
Exercise reduces risk for 8-10 cancer types, with the strongest protection for colon, breast, and endometrial cancers. Physical activity boosts natural killer cells that infiltrate tumors and can reduce tumor growth by roughly 60%. Even 15 minutes daily of vigorous activity shows measurable anti-cancer effects. For those in treatment, exercise improves tumor blood vessel quality, enhancing drug delivery and radiation effectiveness.
Key Points
- Exercise reduces risk for 8-10 cancer types, with strongest evidence for colon, breast, and endometrial cancers
- More activity yields greater protection, with benefits accumulating from 150-300 minutes weekly of moderate intensity
- Low muscle mass drives worse cancer outcomes; cachexia represents a significant mortality risk factor
- Exercise improves tumor blood vessel quality, enhancing drug delivery and radiation effectiveness
- Physical activity increases natural killer cells that infiltrate tumors, reducing growth by approximately 60%
- Even 15 minutes daily of vigorous activity demonstrates measurable anti-cancer effects
- Patients report exercise provides sense of control and mastery alongside physical improvements
Key Moments
Exercise as cancer therapy: Kerry Courneya on how training recalibrates tumor biology
Courneya's 600+ studies show exercise enhances immune function, improves treatment tolerance, and influences cancer progression.
"Exercise is not just supportive, it's a therapeutic intervention that recalibrates tumor biology, enhances treatment tolerance, and improves survival outcomes."
Aerobic exercise, resistance training, and HIIT all show cancer-fighting benefits
Structured exercise programs combining aerobic, resistance, and high-intensity intervals can mitigate treatment side effects and enhance immune.
"His work has fundamentally reshaped our understanding of how structured exercise, whether aerobic, resistance training, or high-intensity intervals, can mitigate treatment side effects."
