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Mouse experiment proves that running can help fight cancer


Science and Technology Daily, Beijing, February 17 (Reporter Chen Dan) Can sports help fight cancer? For the first time, scientists from the University of Copenhagen in Denmark have confirmed that running really helps to delay the growth of tumors.

According to the report on the 16th of the website of New Scientist magazine, the research team led by Penniley Hoyman of the University of Copenhagen used mice with cancer to test the effect of exercise on five different cancers, including skin cancer, lung cancer and liver cancer. They let mice run 4 to 7 kilometers every night, and found that the anti-cancer ability of the immune system of mice was improved, which not only prevented new tumors, but also slowed the growth rate of the original tumors by up to 60%.


This experiment proved for the first time that exercise can directly control the growth rate of tumors. Researchers found that exercise promoted the secretion of adrenaline, which in turn stimulated the immune system to release natural anti-cancer "killer cells" into the blood. During the exercise of mice, muscle will produce a substance called interleukin 6, which can guide "killer cells" to attack tumors.

Lee Jones of Memorial Sloan-Kettering Cancer Center in New York commented that scientists had known that exercise could affect the activity of natural "killer cells", but this was the first time that exercise could directly help these cells fight cancer through experiments, which was a missing piece of puzzle for a long time.


However, running exercise did not reduce the tumor of the experimental mice, but only made them grow less quickly. This shows that it is impossible to reverse the existing tumor through movement.

Hoyman said that for humans, there is also some evidence that exercise can prevent the recurrence of rectal cancer and breast cancer after menopause. Her team plans to follow up cancer patients in the next step to investigate whether their exercise patterns can have similar good effects on the disease.



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