How many minutes a day of moderately intense exercise is necessary to significantly decrease breast cancer risk?
To prevent a recurrence should breast cancer survivors on tamoxifen seek or snub soy?
We’ve known that physical activity, can reduce breast cancer risk, and appears to work especially well at preventing estrogen-receptor negative tumors—the hardest one’s to treat but only last year. did we figure out how much exercise was needed. We’ve known that light exercise doesn’t work—like a leisurely stroll appears useless for preventing breast cancer, and we’ve know that fewer than 10 minutes a day of even good exercise doesn’t work either. How many minutes of moderately intense exercise—hiking, biking, swimming, aerobics—or even just fast walking, does one need, on average, every day to significantly decrease breast cancer risk? Less than 10 minute doesn’t work, but how about full 10? 15? 30? 45? A full hour a day?
Well, It’s not 10. It’s not 45. And it’s not 15. We need an hour of exercise every day. Darwin was right: it is survival of the fittest, so let’s get fit!
To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring watch the above video. This is just an approximation of the audio contributed by veganmontreal.
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T. M. Peters, A. Schatzkin, G. L. Gierach, S. C. Moore, J. V. Lacey Jr, N. J. Wareham, U. Ekelund, A. R. Hollenbeck, and M. F. Leitzmann. Physical activity and postmenopausal breast cancer risk in the NIH-AARP diet and health study. Cancer Epidemiol Biomarkers Prev., 18(1):289-296, 2009.
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