This document discusses ways to prevent cancer through lifestyle choices and public health programs. It reports that about 1/3 of cancers can be prevented by not smoking, maintaining a healthy weight, being physically active, eating a plant-based diet, limiting alcohol intake, and participating in screening programs. The document also examines global perceptions of cancer risks and finds misconceptions about causes. For example, many believe stress or viruses cause cancer despite little evidence. The document argues journalists should help raise awareness of known risk factors and prevent fatalistic views of cancer.