The positive effects of exercise on cancer outcome have been documented many times over in the research literature, however the mechanisms underlying these observations have remained somewhat elusive.
An important study, undertaken by The Karolinska Institute in Sweden (a major academic institution in that country), and recently published in eLife (a well-regarded online scientific journal) illuminates the mechanism behind how exercise helps the immune system to act against tumor progression.
At CCLM, we love this kind of a study because it serves to scientifically validate how lifestyle factors can play a role in preventing and managing cancer. While this study was carried out using an animal model (in mice), it supports the many studies that document lower rates of cancer incidence in humans proportionate to their engagement in exercise.
Please see the link below for a deeper dive into the topic: https://pubmed.ncbi.nlm.nih.gov/33095157/