Exercise could alter the way the immune system deals with cancer, which could explain the lower risk of dying from cancer in those who exercise.
The relationship between exercise and cancer has long both intrigued and puzzled oncologists and exercise physiologists.
Exercise is strongly associated with lowered risks for many types of cancer. In epidemiological studies, people who regularly exercise generally prove to be much less likely to develop or die from the disease than people who do not. At the same time, exercise involves biological stress, which typically leads to a short-term increase in inflammation throughout the body. Inflammation can contribute to elevated risks for many cancers.
To try to better understand how exercise can both elevate inflammation and simultaneously protect the body against cancer, scientists at the University of Copenhagen in Denmark and other institutions decided to closely examine what happens inside mice at high risk for the disease.
So, for the new study, which was published this month in Cell Metabolism, they began by gathering a group of adult lab mice. These animals generally like to run.
Read Full Article: How Exercise May Lower Cancer Risk – The New York Times