Evidence is pretty good. And it sure can't hurt.
The Newcastle researchers found that exercise boosted the activity of genes that support mitochondrial energy metabolism, enabling cells to use oxygen more efficiently.
At the same time, genes linked to rapid cell growth were switched off, which could reduce the aggressiveness of cancer cells, and exercise-conditioned blood promoted DNA repair, activating a key repair gene called PNKP.
The study involved 30 volunteers, male and female aged 50–78, all overweight or obese (a risk factor of cancer) but otherwise healthy.
After completing a short, intense cycling test lasting approximately 10 minutes, researchers collected blood samples and analysed 249 proteins. As many as 13 proteins increased after exercise, including interleukin-6 (IL-6), which helps repair the DNA of damaged cells.
“These results suggest that exercise doesn’t just benefit healthy tissues, it may also create a more hostile environment for cancer cells to grow,” said Dr. Orange, a Clinical Exercise Physiologist at The Newcastle Hospitals NHS Foundation Trust.
“Even a single workout can make a difference. One bout of exercise, lasting just 10 minutes, sends powerful signals to the body.”
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