A review by Ruiz-Casado et al, published in the journal Trends in Cancer found that regular, moderate-intensity physical activity (PA) (e.g., brisk walking) decreases the risk of many cancers as well as of cancer mortality. In animal studies regular exercise inhibits tumor onset and progression across a wide range of tumor models.
PA has been shown to lower cancer risk in breast, prostate, endometrial, ovarian, renal, pancreatic, colon, lung, and gastroesophageal cancers.
Read about the study here.