Cancer—the very word sends chills down your spine. It often strikes silently, and many people are diagnosed at an advanced stage, making treatment difficult and the chances of a cure slim. Cancer is a serious and complex disease that imposes a tremendous health burden globally. It not only affects the lives of the patients themselves but also has a profound impact on their families and society. While the average person may feel that cancer is far removed from their life, its incidence is actually quietly rising due to lifestyle changes, increased environmental pollution, and genetic factors. The "invisible threat" of cancer is everywhere, especially for certain groups who are at higher risk. So, what is the probability of developing cancer in one's lifetime?