A cutting edge theory is that exercise can interfere's with cancer's metabolism (Warburg Effect) and helps to regulate lactate levels which chronically dis-regu

A cutting edge theory is that exercise can interfere's with cancer's metabolism (Warburg Effect) and helps to regulate lactate levels which chronically dis-regulated will promote cancer. "Specifically, we posit that in carcinogenesis aberrant cell signaling due to exaggerated and continually high lactate levels yields an (inappropriate) positive feedback loop" [1] https://academic.oup.com/carcin/article/38/2/119/2709442 https://academic.oup.com/carcin/article/38/2/119/2709442