Cancer and Cardiovascular diseases (CVD) are the two most prominent causes of death worldwide. Emerging evidence indicates shared risk factors and a common biology between these diseases. For instance, chronic inflammation has a significant role in contributing to both diseases. An alteration of the vasculature and the endothelial cells plays a key role in pathogenesis of CVD and cancer. The widespread overlap regarding disease prevention and risk factors for these diseases suggest a common mechanism in terms of molecular pathways. The goal of this tutorial is to present common problems and mechanism of these two mayor diseases.